Perhaps you should try some spelling variations:
doc sach » hoc sach, toc sach, nuoc sach
van hanh » van thanh, ban hanh, van ban
sach ty » sach y, sach tu, sach thu
xang co » nang co, lang co, tang co
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
van anh » van thanh, tuan anh, van minh
cua cau » cua cac, cua chu, cua cay
ve cac » va cac, vien cac
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc sach ty xang co hoc. hieu ve cac xuc ((van hanh) or (van anh)) di cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc sach ty xang co hoc. hieu ve cac xuc ((van hanh) OR (van anh)) di cua cau*.