Perhaps you should try some spelling variations:
cau triet » cau trieu, su triet, cua triet
cham xuc » cam xuc, chat xuc, cham soc
ban hanh » ban hang
thu sach » tu sach, thuat sach, thuoc sach
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va thanh, va danh
nang ma » tang ma, sang ma, nang cao
cua tre » cua te, cuu tre, cua triet
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: thu sach ky nang ma hoi. hieu ve cham xuc ((va hanh) or (ban hanh)) vi ((cua tre) or (cau triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang ma hoi. hieu ve cham xuc ((va hanh) OR (ban hanh)) vi ((cua tre) OR (cau triet)).
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang ma hoi. hieu ve cham xuc ((va hanh) or (ban hanh)) vi ((cua tre) or (cau triet))*.