Perhaps you should try some spelling variations:
tinh viec » tinh viet, dinh viec, sinh viec
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
nam duoc » nam thuoc, da duoc, dat duoc
duoc ma » duoc lam
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
hieu va » hieu qua
ma tinh » may tinh, man tinh, mai tinh
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
ma hoi » mai hoi, xa hoi, ma hoa

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

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