Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
hieu van » hieu va, thien van, lieu va
danh bat » doanh bat, anh bai, dinh ba
cham xuc » cam xuc, chat xuc, cham soc
van cham » van chat, van tham, va cham
cao hoi » cau hoi, cao hoc, tao hoi
su sach » so sach, vu sach
va danh » va dinh, va dan, va hanh
tu sach » thu sach, te sach, tu cach
co hoi » co hoc, co loi
xuc va » duc va, tuc va, luc va
bat va » ban va, dat va, vat va

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

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