Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tham tuc » tham thuc, thai tuc, nham thuc
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va tham » van tham, va cham, va thanh
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, dua tren
tu can » tu ban, thu canh
tuc va » thuc va, truc va, tuc xa

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

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