Perhaps you should try some spelling variations:
tang tai » hang tai, dung tai, sang tao
hieu sau » hieu su, hieu suat, tieu su
sau chat » sat chat, sau chan, soat chat
chat duc » chat xuc, chat doc, chet duoc
ban hanh » ban hang
hanh dai » hanh tai, hanh dao, vanh dai
te sach » toc sach
sach ky » sac ky, sach y, sach ty
ky tang » ky nang, ky dang, kho tang
tai hoi » tai khoi, dai hoi, tai hai
duc ban » duc tan, duc van, dua ban
cua te » cua tu
cua su » qua su

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky tang tai hoi. hieu sau chat duc ban hanh dai ((cua te) or (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky tang tai hoi. hieu sau chat duc ban hanh dai ((cua te) OR (cua su)).
• Adding a wildcard symbol may retrieve word variants: te sach ky tang tai hoi. hieu sau chat duc ban hanh dai ((cua te) or (cua su))*.