Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
vien cac » vien bach, vien dai, vien da
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
nang ma » tang ma, sang ma, nang cao
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
ma hoi » mai hoi, xa hoi, ma hoa
di cua » dai cua, doi cua, do cua
de cua » le cua, te cua, dieu 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 v nang ma hoi. hieu vien cac xuc van hanh ((di cua) or (de cua)) tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v nang ma hoi. hieu vien cac xuc van hanh ((di cua) OR (de cua)) tuc.
• Adding a wildcard symbol may retrieve word variants: te sach v nang ma hoi. hieu vien cac xuc van hanh ((di cua) or (de cua)) tuc*.