Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
danh dai » danh dau, danh di, danh sai
ve cham » va cham, vu cham, ve chim
va danh » va dinh, va dan, va hanh
ve chat » va chat, van chat
te sach » toc sach
cao hoi » cau hoi, co hoi, cao hoc
su sach » so sach, vu sach
xuc va » duc va, tuc va, luc va
dai va » mai va

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

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