Perhaps you should try some spelling variations:
cuc triet » cua triet, su triet, cac trieu
hoc sach » hoc cac, hoc anh
cham xuc » cam xuc, chat xuc, cham soc
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va vanh » va danh, va hanh, va anh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc sach) OR (hoc sinh)) ky nang xa hoi. hieu va cham xuc ((va vanh) or (va van)) tai cuc triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc sach) OR (hoc sinh)) ky nang xa hoi. hieu va cham xuc ((va vanh) OR (va van)) tai cuc triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc sach) OR (hoc sinh)) ky nang xa hoi. hieu va cham xuc ((va vanh) or (va van)) tai cuc triet".
• Adding a wildcard symbol may retrieve word variants: ((hoc sach) OR (hoc sinh)) ky nang xa hoi. hieu va cham xuc ((va vanh) or (va van)) tai cuc triet*.