Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
hieu vien » hieu hien, thieu nien, hieu tieng
cong cua » cong cu, dong cua, huong cua
cac luc » cau luc, coc luc, cac nuoc
nang ma » tang ma, sang ma, nang cao
va danh » va dinh, va dan, va hanh
co cua » con cua, ca cua, cuoi cua
tu san » thu san, tu ban, tu can
luc va » duc va, tuc va, loc va
san ky » sang ky, van ky, dan ky
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky nang ma hoi. ((hieu vien) or (hieu viec)) cac luc va danh ((co cua) OR (cong cua)) su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky nang ma hoi. ((hieu vien) OR (hieu viec)) cac luc va danh ((co cua) OR (cong cua)) su.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky nang ma hoi. ((hieu vien) or (hieu viec)) cac luc va danh ((co cua) OR (cong cua)) su".
• Adding a wildcard symbol may retrieve word variants: tu san ky nang ma hoi. ((hieu vien) or (hieu viec)) cac luc va danh ((co cua) OR (cong cua)) su*.