Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
tuc tuan » duc thuan, quoc tuan, tuc thanh
ve triet » va trien, su triet
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
vu sach » vu bach, vu khach
vien da » vien dai, hien dai
anh vai » anh va, anh bai, anh van
su sach » so sach
da tuc » dao tuc, va tuc, da tac

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: ((su sach) OR (vu sach)) ky dang xa hoi. hieu vien da tuc tuan anh vai ((va thiet) OR (ve triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) ky dang xa hoi. hieu vien da tuc tuan anh vai ((va thiet) or (ve triet))~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (vu sach)) ky dang xa hoi. hieu vien da tuc tuan anh vai ((va thiet) or (ve triet))*.