Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
sach tu » sach thu, cach tu, sach ty
tu lang » cu lang, tu lanh, xu lang
lang co » lang o, nang co, tang co
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
van anh » van thanh, tuan anh, van minh
cua cau » cua cac, cua chu, cua cay
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach tu lang co hoc. hieu va cac xuc ((van ban) or (van anh)) vi cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach tu lang co hoc. hieu va cac xuc ((van ban) OR (van anh)) vi cua cau*.