Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
hanh dao » lanh dao, thanh dat, thanh dam
van hanh » van thanh, ban hanh, van anh
vien cac » vien bach, vien dai, vien da
cac xuc » cam xuc, cac nuoc, chat xuc
dao cua » dai cua, day cua, dan cua
cach tu » cach thuc
xuc van » duc van, luc van, vuc van
sach tu » sach thu, sach ty, sach uu
cua tu » cua tuc, cua su, cua cu
ma hoi » mai hoi, xa hoi, me hoi

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: doc ((sach tu) OR (cach tu)) nang ((ma hoi) OR (ma hoa)). hieu vien cac xuc van hanh dao cua tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((sach tu) OR (cach tu)) nang ((ma hoi) or (ma hoa)). hieu vien cac xuc van hanh dao cua tu~".
• Adding a wildcard symbol may retrieve word variants: doc ((sach tu) OR (cach tu)) nang ((ma hoi) or (ma hoa)). hieu vien cac xuc van hanh dao cua tu*.