Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
nam thuc » nam thuoc, am thuc, nam thu
cam tuc » cam tu, dam thuc, nam truc
hanh ma » hanh mau, hanh may, hanh va
va hanh » van hanh, va thanh, va danh
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
nang ma » tang ma, sang ma, nang cao
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
ma va » ma van, mua va, me 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. hieu va ((((cam tuc) or (nam thuc))) or (cam xuc)) va hanh ma va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang ma hoi. hieu va ((((cam tuc) OR (nam thuc))) OR (cam xuc)) va hanh ma va triet.
• Adding a wildcard symbol may retrieve word variants: su sach y nang ma hoi. hieu va ((((cam tuc) or (nam thuc))) or (cam xuc)) va hanh ma va triet*.