Perhaps you should try some spelling variations:
danh vai » danh va, doanh van, dang van
danh sai » dung sai, danh bat, danh dau
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cao tuc » dao tuc, cao suc, cao toc
cao duc » dao duc, cao suc, giao duc
tu bai » tu ban, tu bat, te bai
bai ky » ban ky, sai ky, bac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu bai ky nang xa hoi. hieu va ((cao tuc) or (cao duc)) va ((danh vai) OR (danh sai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu bai ky nang xa hoi. hieu va ((cao tuc) OR (cao duc)) va ((danh vai) OR (danh sai)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu bai ky nang xa hoi. hieu va ((cao tuc) or (cao duc)) va ((danh vai) OR (danh sai)) cua tre".
• Adding a wildcard symbol may retrieve word variants: tu bai ky nang xa hoi. hieu va ((cao tuc) or (cao duc)) va ((danh vai) OR (danh sai)) cua tre*.