Perhaps you should try some spelling variations:
van danh » van doanh, van anh, van hanh
ban hanh » ban hang
va triet » va thiet, va trien, ve triet
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
ma hoi » mai hoi, xa hoi, ma hoa
va cam » va cham, va cac, va cao
vai va » mai va, dai va, hai 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 ky nang ma hoi. hieu va cam xuc ((van danh) or (ban hanh)) vai va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ma hoi. hieu va cam xuc ((van danh) OR (ban hanh)) vai va triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ma hoi. hieu va cam xuc ((van danh) or (ban hanh)) vai va triet*.