Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
viec lam » viec va
lam luc » lao luc, lam duoc
va hanh » van hanh, va thanh, ban hanh
nang xa » lang xa, nang ma, mang xa
vai cua » dai cua, hai cua, lai cua
va danh » va dinh, va dan, dia danh
vu san » va san, vu ban
san ky » sang ky, van ky, dan ky
cua tu » cua tuc, cua su, cua cu

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) or (nang x)) hoi. hieu viec lam luc ((va hanh) OR (va danh)) vai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu san ky ((nang xa) OR (nang x)) hoi. hieu viec lam luc ((va hanh) OR (va danh)) vai cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu san ky ((nang xa) or (nang x)) hoi. hieu viec lam luc ((va hanh) OR (va danh)) vai cua tu*".