Perhaps you should try some spelling variations:
ban hanh » ban hang
cua viet » ca viet, cua vat, cua dieu
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
hieu va » lieu va, hieu qua
xuc ban » duc ban, cuc ban, quoc ban
va cam » va cham, va cac, va cao
cua te » cua tu

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 va cam xuc ban hanh vi ((((cua viet) or (hoa viet))) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky tang xa hoi. hieu va cam xuc ban hanh vi ((((cua viet) OR (hoa viet))) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: su sach ky tang xa hoi. hieu va cam xuc ban hanh vi ((((cua viet) or (hoa viet))) or (cua te))*.