Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
thanh tai » thanh hai, thanh toan, doanh tai
cham dua » chay dua, cham giua, pham duc
te sach » toc sach
dua ban » dia ban, cua ban, qua ban
ve cham » va cham, ve chat, vu cham
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
tang ma » mang may, tang van
nang ma » sang ma, nang cao, mang may
cua tre » cua te, cuu tre, cua triet

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 ty ((nang ma) or (tang ma)) hoa. hieu ve cham dua ban ((thanh tai) or (thanh lap)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((nang ma) OR (tang ma)) hoa. hieu ve cham dua ban ((thanh tai) OR (thanh lap)) cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ty ((nang ma) or (tang ma)) hoa. hieu ve cham dua ban ((thanh tai) or (thanh lap)) cua tre*.