Perhaps you should try some spelling variations:
thai thanh » thi thanh, tai thanh, hai thanh
thanh di » thanh doi, thanh de, thanh do
gay thoi » may thoi, tay thoi, ngay tuoi
hieu va » lieu va, hieu qua
cac toc » cac toi, cac nuoc, cac thoi
sach ty » sach tu, sach thu, xach tay
tay hoi » tay ho, tao hoi, tay thai
di cua » dai cua, doi cua, de cua
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: vu ((sach ty) or (sach y)) dang ((gay thoi) or (tay hoi)). hieu va cac toc thai thanh di cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((sach ty) OR (sach y)) dang ((gay thoi) OR (tay hoi)). hieu va cac toc thai thanh di cua su.
• Adding a wildcard symbol may retrieve word variants: vu ((sach ty) or (sach y)) dang ((gay thoi) or (tay hoi)). hieu va cac toc thai thanh di cua su*.