Perhaps you should try some spelling variations:
hieu vien » hieu viec, thieu nien, hieu tieng
hieu hien » bieu hien, dieu hien, chieu chien
cua triet » cua viet, va triet
hanh dai » hanh tai, hanh dao, vanh dai
su triet » su viet, su tien, ve triet
cac tuc » cac toc, cac tu, cac tac
va hanh » van hanh, va thanh, va danh
tu van » tu va
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 van ky nang x ho. ((hieu vien) or (hieu hien)) cac tuc va hanh dai ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu van ky nang x ho. ((hieu vien) OR (hieu hien)) cac tuc va hanh dai ((cua triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: tu van ky nang x ho. ((hieu vien) or (hieu hien)) cac tuc va hanh dai ((cua triet) or (su triet))*.