Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban thanh » ban hanh
ban hang » ngan hang
toc sach » hoc sach, doc sach, thuoc sach
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
cua tre » cua te, cuu tre, dua tren
ve cam » ve cham, ve cac, va cam
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: toc sach ky nang ma hoi. hieu ve cam duc ((ban thanh) or (ban hang)) vai ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky nang ma hoi. hieu ve cam duc ((ban thanh) OR (ban hang)) vai ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang ma hoi. hieu ve cam duc ((ban thanh) or (ban hang)) vai ((cua tre) or (cua triet))*.