Perhaps you should try some spelling variations:
thanh luu » thanh lieu, thanh ngu, thanh lap
tham luu » tam luu, cham cuu, phap luu
van hanh » van thanh, ban hanh, van anh
hanh vai » hanh vi, hanh va, hanh tai
cua viet » ca viet, hoa viet, cua vat
nang xa » nang x, lang xa, nang ma
hieu va » hieu qua
vai cua » dai cua, hai cua, lai cua

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