Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
hanh vai » hanh vi, hanh va, hanh van
viec cac » vien cac, viec cua, viec lam
hanh tai » thanh tai, hang tai, han tai
cac luc » cau luc, coc luc, cac nuoc
lang xa » lang ha, dang xay, lang van
san ky » sang ky, dan ky, ban ky
luc va » duc va, tuc va, loc va
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) or (van ky)) lang xa hoi. hieu viec cac luc va ((hanh vai) OR (hanh tai)) cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((san ky) OR (van ky)) lang xa hoi. hieu viec cac luc va ((hanh vai) OR (hanh tai)) cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((san ky) or (van ky)) lang xa hoi. hieu viec cac luc va ((hanh vai) OR (hanh tai)) cua tu*".