Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
vien cam » vien cac, vien cao, vien nam
toc sach » hoc sach, doc sach, thuoc sach
hanh doi » thanh doi, hanh noi, hang doi
van hanh » van thanh, ban hanh, van anh
cam vuc » cam xuc
vuc van » duc van, luc van, thuc van
nang xa » nang x, lang xa, nang ma
ly nang » ky nang, ly hang, ly vang
cua cau » cua cac, cua chu, cua cay
cua cu » cua chu, cua su, cua co

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: ((te sach) OR (toc sach)) ly nang xa hoi. hieu vien cam vuc van hanh doi ((cua cu) OR (cua cau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) ly nang xa hoi. hieu vien cam vuc van hanh doi ((cua cu) or (cua cau))~".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) ly nang xa hoi. hieu vien cam vuc van hanh doi ((cua cu) or (cua cau))*.