Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
van thanh » ban thanh, van tuan
viec cac » vien cac, viec cua, viec lam
van hanh » ban hanh, van anh, van ban
nang xa » nang x, lang xa, nang ma
cac luc » cau luc, coc luc, cac nuoc
va hanh » va thanh, va danh, ban hanh
hai cua » thai cua, dai cua, hoi cua
vu san » va san, vu ban
san ky » sang ky, van ky, dan ky
cua te » cua tu

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: vu san ky nang xa hoi. hieu viec cac luc ((va hanh) OR (((van hanh) OR (van thanh)))) hai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu san ky nang xa hoi. hieu viec cac luc ((va hanh) or (((van hanh) OR (van thanh)))) hai cua te~".
• Adding a wildcard symbol may retrieve word variants: vu san ky nang xa hoi. hieu viec cac luc ((va hanh) or (((van hanh) OR (van thanh)))) hai cua te*.