Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
hanh vai » hanh vi, hanh va, hanh tai
dang xay » dang van, van xay
nang xa » nang x, lang xa, nang ma
vai cua » dai cua, hai cua, lai cua
tuc va » thuc va, truc va, tuc xa
vu san » va san, vu ban
luc va » duc va, loc va
san ky » sang ky, van ky, dan ky
cua te » cua tu

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