Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu va » lieu va, hieu qua
cam luc » cau luc
tuc dan » thuc dan, thuc day, tung dan
hieu ve » hieu van
nang xa » nang x, lang xa, nang ma
dan ky » van ky
va anh » van anh, va danh, va hanh
anh va » hanh va
va cua » va chua, via cua, ca cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tuc dan ky nang xa hoi. ((hieu ve) OR (hieu va)) ((cam luc) or (cam xuc)) va anh va cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tuc dan ky nang xa hoi. ((hieu ve) OR (hieu va)) ((cam luc) OR (cam xuc)) va anh va cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tuc dan ky nang xa hoi. ((hieu ve) OR (hieu va)) ((cam luc) or (cam xuc)) va anh va cua triet*".