Perhaps you should try some spelling variations:
ban hanh » ban hang
ky tang » ky nang, kho tang, ky trong
ky dang » ky nang, ky danh
hieu ve » hieu va, hieu van
van anh » van thanh, tuan anh, van minh
hoi cua » hoi chuc
cua tre » cua te, cuu tre, cua triet
su sac » su sach, su cac, su xac
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: su sac ((ky tang) or (ky dang)) xa hoi. hieu ve cam xuc ((ban hanh) or (van anh)) hoi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ((ky tang) OR (ky dang)) xa hoi. hieu ve cam xuc ((ban hanh) OR (van anh)) hoi cua tre.
• Adding a wildcard symbol may retrieve word variants: su sac ((ky tang) or (ky dang)) xa hoi. hieu ve cam xuc ((ban hanh) or (van anh)) hoi cua tre*.