Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
nam thuc » nam thuoc, am thuc, nam thu
va thanh » gia thanh, ban thanh, va tinh
dao hanh » dao thanh, dang hanh, ban hanh
hieu ve » hieu va, hieu van
va danh » va dinh, va dan, va hanh
cao hoi » cau hoi, co hoi, cao hoc
so sach » so sanh, bo sach, co sach
ve nam » he nam, va nam, le nam
y nang » ky nang, ly nang, v nang
lai va » loai va, mai va, dai va

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach y nang cao hoi. hieu ve nam thuc ((((dao hanh) or (va thanh))) or (va danh)) lai va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y nang cao hoi. hieu ve nam thuc ((((dao hanh) OR (va thanh))) OR (va danh)) lai va triet.
• Adding a wildcard symbol may retrieve word variants: so sach y nang cao hoi. hieu ve nam thuc ((((dao hanh) or (va thanh))) or (va danh)) lai va triet*.