Perhaps you should try some spelling variations:
hoc kinh » hoc sinh, luoc kinh
kinh ky » minh ky, trinh ky, kinh tay
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cam tuc » cam tu, nam thuc, dam thuc
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc kinh ky nang xa hoi. ((hieu ve) or (lieu va)) ((cam tuc) OR (cam xuc)) va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc kinh ky nang xa hoi. ((hieu ve) OR (lieu va)) ((cam tuc) OR (cam xuc)) va hanh vi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc kinh ky nang xa hoi. ((hieu ve) or (lieu va)) ((cam tuc) OR (cam xuc)) va hanh vi cua tre*".