Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
viec cac » vien cac, viec cua, viec lam
nang xa » nang x, lang xa, nang ma
cac luc » cau luc, coc luc, cac nuoc
va hanh » van hanh, va thanh, va danh
vai cua » lai cua, bai cua, mai cua
hai cua » thai cua, hoi cua, lai cua
vu san » va san, vu ban
san ky » sang ky, van ky, dan ky
luc va » duc va, tuc va, loc va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: vu san ky nang xa hoi. hieu viec cac luc va hanh ((((vai cua) OR (hai cua))) or (dai cua)) te~.
• 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 ((((vai cua) OR (hai cua))) OR (dai 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 ((((vai cua) OR (hai cua))) or (dai cua)) te*".