Perhaps you should try some spelling variations:
ban hang » ngan hang
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
qua cam » qua cham, qua cac, qua ca
van anh » van thanh, tuan anh, van minh
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo

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 ky tang xa hoi. hieu qua cam xuc ((ban hang) or (van anh)) vai ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky tang xa hoi. hieu qua cam xuc ((ban hang) OR (van anh)) vai ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky tang xa hoi. hieu qua cam xuc ((ban hang) or (van anh)) vai ((cua tre) OR (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: su sach ky tang xa hoi. hieu qua cam xuc ((ban hang) or (van anh)) vai ((cua tre) OR (cuu tre))*.