Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
viec coc » viec doc, viec cong, viec cuoi
va thanh » gia thanh, ban thanh, va tinh
sang ky » sang kyo, dang ky, tang ky
vai cua » dai cua, hai cua, bai cua
lai cua » dai cua, hai cua, lai chau
san ky » van ky, dan ky, ban ky
luc va » duc va, tuc va, loc va
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 (sang ky)) nang x hoi. hieu viec coc luc va thanh ((vai cua) or (lai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((san ky) OR (sang ky)) nang x hoi. hieu viec coc luc va thanh ((vai cua) OR (lai cua)) te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((san ky) OR (sang ky)) nang x hoi. hieu viec coc luc va thanh ((vai cua) or (lai cua)) te*".