Perhaps you should try some spelling variations:
dinh toai » dinh toi, dinh tai, tinh toan
hieu van » hieu va, thien van, lieu va
cuc viet » chuc viet, cua viet, duc viet
tuc viet » thuc viet, toc viet, nuoc viet
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
van cam » van nam, van lam, van cau
cam tuc » cam xuc, cam tu, nam thuc
va dinh » van dinh, va kinh, va tinh
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
tuc va » thuc va, truc va, tuc xa

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 lang xa hoi. hieu van cam tuc va dinh toai ((cuc viet) or (tuc viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky lang xa hoi. hieu van cam tuc va dinh toai ((cuc viet) OR (tuc viet)).
• Adding a wildcard symbol may retrieve word variants: tu san ky lang xa hoi. hieu van cam tuc va dinh toai ((cuc viet) or (tuc viet))*.