Perhaps you should try some spelling variations:
cong ban » cong bang, cong tan, cong dan
cong san » cong tac
thanh vi » hanh vi, thanh ve, nhanh vi
thanh va » thanh van, hanh va, thanh ha
va triet » va thiet, va trien, ve triet
nang xa » nang x, lang xa, nang ma
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky

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

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