Note: these 'words' (valid or invalid) are all the permutations of the word pho. These words are obtained by scrambling the letters in pho.
Definitions and meaning of pho
Borrowed from Vietnamesephở.
(UK) IPA(key): /fəʊ/, /fɜː/
(US) IPA(key): /foʊ/, /fʌ/
Rhymes: -əʊ, -ɜː(r), -ʌ
Homophones: foe, faux
pho (usually uncountable, pluralphos)
A Vietnamese soup with a beef base, typically served with rice noodles and beef or chicken.
1935: Marcelle "Countess" Morphy, Recipes of All Nations, p. 802 
PHO is the name of an Annamese soup held in high esteem. It is made with beef, a veal bone, onions, a bayleaf, salt, and pepper, and a small teaspoon of nuoc-man,[sic] a typically Annamese condiment which is used in practically all their dishes.
2003: Frank Browning, "73106: Lemongrass on the Prairie", National Geographic, vol. 203, issue 3 
Ten minutes away from the intersection, the heart of Little Saigon, you can easily walk to five restaurants specializing in pho (the classic Vietnamese beef broth soup), two Asian supermarkets, and several Chinese barbecue cafés.
(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)