Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
ban hang » ngan hang
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
hieu ve » hieu va, hieu van
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky dang xa hoi. hieu ve cam xuc ((van hanh) or (ban hang)) vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky dang xa hoi. hieu ve cam xuc ((van hanh) OR (ban hang)) vai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky dang xa hoi. hieu ve cam xuc ((van hanh) or (ban hang)) vai cua tre*.