Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
lang cho » sang cho, hang cho, lang co
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
te sach » toc sach
cac xuc » cam xuc, chat xuc, cac cuoc
cua cau » cua cac, cua chu, cua cay
sach tu » sach thu, cach tu, sach ty
hieu va » hieu qua
cho hoc » co hoc, khoa hoc
tu lang » cu lang, tu lanh, xu lang
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: te sach tu lang cho hoc. ((hieu va) or (lieu va)) ((cac xuc) OR (cac nuoc)) van hanh vi cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu lang cho hoc. ((hieu va) OR (lieu va)) ((cac xuc) OR (cac nuoc)) van hanh vi cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tu lang cho hoc. ((hieu va) or (lieu va)) ((cac xuc) OR (cac nuoc)) van hanh vi cua cau*".