Perhaps you should try some spelling variations:
thuoc sinh » hoc sinh, thu sinh, thuoc sach
hoc sach » hoc sinh, hoc cac, hoc anh
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cac luc » cau luc, cac nuoc, cac cuoc
va hanh » van hanh, va thanh, va danh
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu

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

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