Here's what rhymes with tlwugh.
you u oo ou lieu ooo lu rue eu loo yew yu ewe oooo ooooo ru ooh roux to who do two new through too few true view due knew blue drew du grew que crew threw blew coup flew q qu shoe zu clue cue dew glue hue queue shew su sue tu vous chew cu deux flue fu slew zoo brew bu flu hu ju jus ku mu nu peu pew pu seu shu sou thru vu woo boo chou chu coo cou doo feu fue gu hew mieux shou shrew thu tue vou vue wou wu clew goo mew moo pooh poo shoo gnu slue thew whew phew review screw anew renew accrue debut stew adieu ado piu skew revue sprue tzu redo strew halloo spew valuer prevue wazoo regrew achoo into pursue withdrew bamboo canoe undue ensue taboo undo untrue jusqu tattoo beaucoup eschew outdo sinew vnto askew imbue outgrew ballyhoo endue foreknew zebu indue kazoo bestrew muumuu booboo interview revenue overview residue avenue retinue subdue caribou overdue overthrew barbecue shampoo overdo barbeque bugaboo fondue marabou peekaboo buckaroo overflew overshoe superglue overdrew overgrew atishoo hitherto rendezvous construe kangaroo cockatoo honeydew hullabaloo misconstrue