Perhaps you should try some spelling variations:
ngang cho » nang cho, ngang tho, sang cho
toc sach » hoc sach, doc sach, thuoc sach
van hanh » van thanh, ban hanh, van anh
hieu van » hieu va, thien van, lieu va
tu ngang » tu ngan, hu angang, vu ngan
cho hoc » co hoc, khoa hoc
hieu ve » hieu va
sach tu » sach thu, cach tu, sach ty
cac xuc » cac nuoc, chat xuc, cac cuoc
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach tu ngang cho hoc. ((hieu ve) OR (hieu van)) ((cac xuc) OR (cam xuc)) van hanh vi cua cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach tu ngang cho hoc. ((hieu ve) OR (hieu van)) ((cac xuc) or (cam xuc)) van hanh vi cua cau~".
• Adding a wildcard symbol may retrieve word variants: toc sach tu ngang cho hoc. ((hieu ve) OR (hieu van)) ((cac xuc) or (cam xuc)) van hanh vi cua cau*.