Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
qua cam » qua cham, qua cac, qua ca
su sach » so sach, vu sach
mai hoi » mai khoi, dai hoi, lai hoi
cam luc » cam xuc, cau luc
y nang » ky nang, ly nang, v nang
ma hoi » xa hoi, ma hoa, me hoi
ca va » co va, cu va, c va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y nang ((ma hoi) or (mai hoi)). hieu qua cam luc ((va hanh) or (va danh)) ca va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang ((ma hoi) OR (mai hoi)). hieu qua cam luc ((va hanh) OR (va danh)) ca va triet.
• Adding a wildcard symbol may retrieve word variants: su sach y nang ((ma hoi) or (mai hoi)). hieu qua cam luc ((va hanh) or (va danh)) ca va triet*.