Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
viec cac » vien cac, viec cua, viec lam
hanh dai » hanh tai, hanh dao, vanh dai
cac tuc » cac toc, cac tu, cac tac
va hanh » van hanh, va thanh, va danh
san ky » sang ky, van ky, ban ky
dan ky » van ky
tuc va » thuc va, truc va, tuc xa
cua tu » cua tuc, cua su, cua cu
x hoi » xa hoi, o hoi, x ho

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