Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, lieu vien
ngang cho » nang cho, ngang tho, sang cho
van hanh » van thanh, ban hanh, van anh
ngan cho » ngang tho, nganh che, nganh co
vien cac » vien bach, vien dai, vien da
te sach » toc sach
xuc van » duc van, luc van, vuc van
cac xuc » cam xuc, cac nuoc, chat xuc
sach ty » sach y, sach tu, sach thu
san cho » sang cho, san chi, san co
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: te sach ty ((((ngan cho) OR (san cho))) or (ngang cho)) hoc. hieu vien cac xuc van hanh vi cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((((ngan cho) OR (san cho))) OR (ngang cho)) hoc. hieu vien cac xuc van hanh vi cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ((((ngan cho) OR (san cho))) or (ngang cho)) hoc. hieu vien cac xuc van hanh vi cua cau*".