Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
hieu ban » hieu van, dieu ban, lieu ban
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
cua tre » cuu tre, cua triet, dua tren
te cac » tu cac, ve cac, te cao
goc va » loc va, doc va, uoc va
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: te cac ky dang xa hoi. hieu ban thanh ((goc va) or (hoc va)) hanh vi ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cac ky dang xa hoi. hieu ban thanh ((goc va) OR (hoc va)) hanh vi ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: te cac ky dang xa hoi. hieu ban thanh ((goc va) or (hoc va)) hanh vi ((cua tre) or (cua te))*.