Perhaps you should try some spelling variations:
cua triet » su triet, va triet
tham luc » tham nuoc, tham thuc, nhan luc
than luc » nhan luc, than duc, thanh luu
van hanh » van thanh, ban hanh, van anh
hanh dai » hanh tai, hanh dao, vanh dai
cua viet » ca viet, hoa viet, cua vat
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua

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

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