Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cam luc » cau luc
ky tang » ky nang, ky dang, kho tang
hanh va » hang va, hanh vi
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
va cua » va chua, via cua, ca cua
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
ma hoi » mai hoi, xa hoi, me hoi

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 tang ((ma hoi) OR (ma hoa)). hieu ve ((cam luc) or (cam xuc)) va hanh va cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky tang ((ma hoi) OR (ma hoa)). hieu ve ((cam luc) OR (cam xuc)) va hanh va cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky tang ((ma hoi) OR (ma hoa)). hieu ve ((cam luc) or (cam xuc)) va hanh va cua triet*".