Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
ban thanh » ban hanh
va triet » va thiet, va trien, ve triet
ban hang » ngan hang
sach ty » sach y, sach tu, sach thu
su sach » so sach, vu sach
cam tuc » cam xuc, cam tu, nam thuc
hieu va » lieu va, hieu qua
nang ma » tang ma, sang ma, nang cao
ty nang » ky nang, ty xang, ty hang
va cam » va cham, va cac, va cao
ma hoi » mai hoi, xa hoi, ma hoa

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 ty nang ma hoi. hieu va cam tuc ((ban thanh) or (ban hang)) va ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang ma hoi. hieu va cam tuc ((ban thanh) OR (ban hang)) va ((cua triet) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: su sach ty nang ma hoi. hieu va cam tuc ((ban thanh) or (ban hang)) va ((cua triet) or (va triet))*.