Perhaps you should try some spelling variations:
cong ban » cong bang, cong san, cong dan
cong tan » cong tac, cong san, cong thanh
thanh vi » hanh vi, thanh va, thanh ve
ve triet » su triet
va trien » va truyen, va thiet, va tuyen
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 tan)) thanh vi ((ve triet) or (va trien))~.
• 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 tan)) thanh vi ((ve triet) OR (va trien)).
• 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 tan)) thanh vi ((ve triet) or (va trien))".
• Adding a wildcard symbol may retrieve word variants: te sac ky nang xa hoi. lieu va cac ((cong ban) OR (cong tan)) thanh vi ((ve triet) or (va trien))*.