Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
van thanh » ban thanh, van tuan
vien cac » vien bach, vien dai, vien da
toc sach » hoc sach, doc sach, thuoc sach
sach tu » sach thu, cach tu, sach ty
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
tu nang » tru nang, tu nong, tu nano
dao cua » day cua, dan cua, do cua
ma hoi » mai hoi, xa hoi, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach tu nang ((ma hoi) or (ma hoa)). hieu vien cac xuc van thanh ((dao cua) OR (dai cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach tu nang ((ma hoi) OR (ma hoa)). hieu vien cac xuc van thanh ((dao cua) OR (dai cua)) tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach tu nang ((ma hoi) or (ma hoa)). hieu vien cac xuc van thanh ((dao cua) OR (dai cua)) tu".
• Adding a wildcard symbol may retrieve word variants: toc sach tu nang ((ma hoi) or (ma hoa)). hieu vien cac xuc van thanh ((dao cua) OR (dai cua)) tu*.