Perhaps you should try some spelling variations:
ban hanhh » ban hang, ban thanh, van hanh
thu sach » tu sach, thuat sach, thuoc sach
ban hanh » ban hang
cham cuu » cap cuu, chat cua
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
di cua » dai cua, doi cua, de cua

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 dang xa hoi. hieu ve ((cham cuu) or (cam xuc)) ((ban hanhh) or (ban hanh)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky dang xa hoi. hieu ve ((cham cuu) OR (cam xuc)) ((ban hanhh) OR (ban hanh)) di cua tre.
• Adding a wildcard symbol may retrieve word variants: thu sach ky dang xa hoi. hieu ve ((cham cuu) or (cam xuc)) ((ban hanhh) or (ban hanh)) di cua tre*.