Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
nang xa » nang x, lang xa, nang ma
hieu ve » hieu van
cam thu » nam thu, cac thu, ca thu
vi cua » vai cua, di cua
thu va » thuc va, thue va, tu va
tu sac » tu sach, tu cac, tu bac
tu san » thu san, tu ban, tu can

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sac) or (tu san)) ky nang xa hoi. ((hieu ve) OR (hieu va)) cam thu va hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu san)) ky nang xa hoi. ((hieu ve) OR (hieu va)) cam thu va hanh vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) or (tu san)) ky nang xa hoi. ((hieu ve) OR (hieu va)) cam thu va hanh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (tu san)) ky nang xa hoi. ((hieu ve) OR (hieu va)) cam thu va hanh vi cua triet*.