Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
nang cho » nang chon, ngang cho, nang cao
van hanh » van thanh, ban hanh, van anh
hieu van » thien van, lieu va, hieu ve
cac xuc » cac nuoc, chat xuc, cac cuoc
hanh di » hanh vi, hanh de, hang di
hieu va » lieu va, hieu qua
sach tu » sach thu, cach tu, sach ty
cho hoc » co hoc, khoa hoc
tu nang » tru nang, tu nong, tu nano
cua cau » cua cac, cua chu, cua cay
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: thuoc sach tu nang cho hoc. ((hieu van) or (hieu va)) ((cac xuc) OR (cam xuc)) van hanh di cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach tu nang cho hoc. ((hieu van) OR (hieu va)) ((cac xuc) OR (cam xuc)) van hanh di cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach tu nang cho hoc. ((hieu van) or (hieu va)) ((cac xuc) OR (cam xuc)) van hanh di cua cau*".