Perhaps you should try some spelling variations:
dinh tai » dinh toai, dinh thi, dinh tri
hieu va » lieu va, hieu qua
cao tuc » dao tuc, cao duc, cao suc
va dinh » van dinh, va kinh, va tinh
ca viet » va viet, co viet, hoa viet
tu san » thu san, tu ban, vu san
tu can » tu ban, tu cac, thu canh
va cao » va cac, va co, va dao
tuc va » thuc va, truc va, tuc xa
tai ca » tai cac, tai cao, tai cua
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: ((tu san) or (tu can)) ky nang x hoi. hieu va cao tuc va dinh tai ca viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu san) OR (tu can)) ky nang x hoi. hieu va cao tuc va dinh tai ca viet.
• Adding a wildcard symbol may retrieve word variants: ((tu san) or (tu can)) ky nang x hoi. hieu va cao tuc va dinh tai ca viet*.