snails nsails sanils asnils nasils ansils snials nsials sinals isnals nisals insals sainls asinls sianls isanls aisnls iasnls naisls anisls niasls inasls ainsls iansls snalis nsalis sanlis asnlis naslis anslis snlais nslais slnais lsnais nlsais lnsais salnis aslnis slanis lsanis alsnis lasnis nalsis anlsis nlasis lnasis alnsis lansis snilas nsilas sinlas isnlas nislas inslas snlias nslias slnias lsnias nlsias lnsias silnas islnas slinas lsinas ilsnas lisnas nilsas inlsas nlisas lnisas ilnsas linsas sailns asilns sialns isalns aislns iaslns salins aslins slains lsains alsins lasins silans islans slians lsians ilsans lisans ailsns ialsns alisns laisns ilasns liasns nailss anilss nialss inalss ainlss ianlss naliss anliss nlaiss lnaiss alniss laniss nilass inlass nliass lniass ilnass linass ailnss ialnss alinss lainss ilanss lianss snaisl nsaisl sanisl asnisl nasisl ansisl sniasl nsiasl sinasl isnasl nisasl insasl sainsl asinsl siansl isansl aisnsl iasnsl naissl anissl niassl inassl ainssl ianssl snasil nsasil sansil asnsil nassil anssil snsail nssail ssnail ssnail nssail snsail sasnil assnil ssanil ssanil assnil sasnil nassil anssil nsasil snasil asnsil sansil snisal nsisal sinsal isnsal nissal inssal snsial nssial ssnial ssnial nssial snsial sisnal issnal ssinal ssinal issnal sisnal nissal inssal nsisal snisal isnsal sinsal saisnl asisnl siasnl isasnl aissnl iassnl sasinl assinl ssainl ssainl assinl sasinl sisanl issanl ssianl ssianl issanl sisanl aissnl iassnl asisnl saisnl isasnl siasnl naissl anissl niassl inassl ainssl ianssl nasisl ansisl nsaisl snaisl asnisl sanisl nisasl insasl nsiasl sniasl isnasl sinasl aisnsl iasnsl asinsl sainsl isansl siansl snalsi nsalsi sanlsi asnlsi naslsi anslsi snlasi nslasi slnasi lsnasi nlsasi lnsasi salnsi aslnsi slansi lsansi alsnsi lasnsi nalssi anlssi nlassi lnassi alnssi lanssi snasli nsasli sansli asnsli nassli anssli snsali nssali ssnali ssnali nssali snsali sasnli assnli ssanli ssanli assnli sasnli nassli anssli nsasli snasli asnsli sansli snlsai nslsai slnsai lsnsai nlssai lnssai snslai nsslai ssnlai ssnlai nsslai snslai slsnai lssnai sslnai sslnai lssnai slsnai nlssai lnssai nslsai snlsai lsnsai slnsai salsni aslsni slasni lsasni alssni lassni saslni asslni ssalni ssalni asslni saslni slsani lssani sslani sslani lssani slsani alssni lassni aslsni salsni lsasni slasni nalssi anlssi nlassi lnassi alnssi lanssi naslsi anslsi nsalsi snalsi asnlsi sanlsi nlsasi lnsasi nslasi snlasi lsnasi slnasi alsnsi lasnsi aslnsi salnsi lsansi slansi snilsa nsilsa sinlsa isnlsa nislsa inslsa snlisa nslisa slnisa lsnisa nlsisa lnsisa silnsa islnsa slinsa lsinsa ilsnsa lisnsa nilssa inlssa nlissa lnissa ilnssa linssa snisla nsisla sinsla isnsla nissla inssla snsila nssila ssnila ssnila nssila snsila sisnla issnla ssinla ssinla issnla sisnla nissla inssla nsisla snisla isnsla sinsla snlsia nslsia slnsia lsnsia nlssia lnssia snslia nsslia ssnlia ssnlia nsslia snslia slsnia lssnia sslnia sslnia lssnia slsnia nlssia lnssia nslsia snlsia lsnsia slnsia silsna islsna slisna lsisna ilssna lissna sislna isslna ssilna ssilna isslna sislna slsina lssina sslina sslina lssina slsina ilssna lissna islsna silsna lsisna slisna nilssa inlssa nlissa lnissa ilnssa linssa nislsa inslsa nsilsa snilsa isnlsa sinlsa nlsisa lnsisa nslisa snlisa lsnisa slnisa ilsnsa lisnsa islnsa silnsa lsinsa slinsa sailsn asilsn sialsn isalsn aislsn iaslsn salisn aslisn slaisn lsaisn alsisn lasisn silasn islasn sliasn lsiasn ilsasn lisasn ailssn ialssn alissn laissn ilassn liassn saisln asisln siasln isasln aissln iassln sasiln assiln ssailn ssailn assiln sasiln sisaln issaln ssialn ssialn issaln sisaln aissln iassln asisln saisln isasln siasln salsin aslsin slasin lsasin alssin lassin saslin asslin ssalin ssalin asslin saslin slsain lssain sslain sslain lssain slsain alssin lassin aslsin salsin lsasin slasin silsan islsan slisan lsisan ilssan lissan sislan isslan ssilan ssilan isslan sislan slsian lssian sslian sslian lssian slsian ilssan lissan islsan silsan lsisan slisan ailssn ialssn alissn laissn ilassn liassn aislsn iaslsn asilsn sailsn isalsn sialsn alsisn lasisn aslisn salisn lsaisn slaisn ilsasn lisasn islasn silasn lsiasn sliasn nailss anilss nialss inalss ainlss ianlss naliss anliss nlaiss lnaiss alniss laniss nilass inlass nliass lniass ilnass linass ailnss ialnss alinss lainss ilanss lianss naisls anisls niasls inasls ainsls iansls nasils ansils nsails snails asnils sanils nisals insals nsials snials isnals sinals aisnls iasnls asinls sainls isanls sianls nalsis anlsis nlasis lnasis alnsis lansis naslis anslis nsalis snalis asnlis sanlis nlsais lnsais nslais snlais lsnais slnais alsnis lasnis aslnis salnis lsanis slanis nilsas inlsas nlisas lnisas ilnsas linsas nislas inslas nsilas snilas isnlas sinlas nlsias lnsias nslias snlias lsnias slnias ilsnas lisnas islnas silnas lsinas slinas ailsns ialsns alisns laisns ilasns liasns aislns iaslns asilns sailns isalns sialns alsins lasins aslins salins lsains slains ilsans lisans islans silans lsians slians
Note: these 'words' (valid or invalid) are all the permutations of the word snails. These words are obtained by scrambling the letters in snails.