Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
van hanh » van thanh, ban hanh, van anh
hieu va » lieu va, hieu qua
hanh va » hang va, hanh vi
duc van » duc va, duc tan, duc manh
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
hieu ve » hieu van
cam duc » cam xuc, cao duc, pham duc
tu san » thu san, tu ban, vu san
tu can » tu ban, tu cac, thu canh

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 dang xa hoi. ((hieu ve) or (hieu va)) cam duc van hanh va su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu san) OR (tu can)) ky dang xa hoi. ((hieu ve) OR (hieu va)) cam duc van hanh va su triet.
• Adding a wildcard symbol may retrieve word variants: ((tu san) or (tu can)) ky dang xa hoi. ((hieu ve) or (hieu va)) cam duc van hanh va su triet*.