Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thai son » thai den, thai do, thai o
thai hoc » dai hoc, bai hoc, hoi hoc
va thanh » gia thanh, ban thanh, va tinh
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va hanh » van hanh, va danh, ban hanh
te cac » tu cac, ve cac, te cao
di cua » dai cua, doi cua, de cua

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

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