Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
su triet » su viet, su tien, ve triet
ky tang » ky dang, kho tang, ky trong
van cam » van nam, van lam, van cau
cam luc » cam xuc, cau luc
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
tu ban » thu ban, te ban
luc va » duc va, tuc va, loc va
di su » doi su, ki su, da su

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ban ((ky tang) or (ky nang)) xa hoi. hieu van cam luc va hanh di su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ban ((ky tang) OR (ky nang)) xa hoi. hieu van cam luc va hanh di su triet.
• Adding a wildcard symbol may retrieve word variants: tu ban ((ky tang) or (ky nang)) xa hoi. hieu van cam luc va hanh di su triet*.