Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
hanh dai » hanh tai, hanh dao, vanh dai
viec cac » vien cac, viec cua, viec lam
va hanh » van hanh, va thanh, va danh
cac luc » cau luc, coc luc, cac nuoc
lang xa » lang ha, dang xay, lang van
sang ky » sang kyo, tang ky, bang ky
nang xa » nang x, nang ma, mang xa
dang ky » dang y, dan ky, dong ky
luc va » duc va, tuc va, loc va
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 ((sang ky) or (dang ky)) ((nang xa) OR (lang xa)) hoi. hieu viec cac luc va hanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((sang ky) OR (dang ky)) ((nang xa) OR (lang xa)) hoi. hieu viec cac luc va hanh dai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((sang ky) or (dang ky)) ((nang xa) OR (lang xa)) hoi. hieu viec cac luc va hanh dai cua te*".