Perhaps you should try some spelling variations:
tinh viec » tinh viet, dinh viec, sinh viec
nam thuc » nam thuoc, am thuc, nam thu
cua viet » ca viet, hoa viet, cua vat
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
nam xuc » cam xuc, nam xua, nam duoc
tu bac » tu ban, tu bat, tu bai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu bac) or (tu cac)) ky tang xa hoi. lieu va ((nam xuc) OR (nam thuc)) may tinh viec cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu bac) OR (tu cac)) ky tang xa hoi. lieu va ((nam xuc) OR (nam thuc)) may tinh viec cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu bac) or (tu cac)) ky tang xa hoi. lieu va ((nam xuc) OR (nam thuc)) may tinh viec cua viet".
• Adding a wildcard symbol may retrieve word variants: ((tu bac) or (tu cac)) ky tang xa hoi. lieu va ((nam xuc) OR (nam thuc)) may tinh viec cua viet*.