Perhaps you should try some spelling variations:
thang tien » toan tien, thanh vien, thanh nien
bang tien » van tien, ban tieng
so sanh » do sanh
cac ban » cac dan, cac van, can ban
cua tre » cua te, cuu tre, cua triet
sanh ky » hanh ky, sang ky, nganh ky
tac ban » tai ban, tao ban, tay ban
qua cac » cua cac
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh ky nang x hoi. hieu qua cac ((tac ban) OR (cac ban)) ((thang tien) or (bang tien)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh ky nang x hoi. hieu qua cac ((tac ban) OR (cac ban)) ((thang tien) OR (bang tien)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh ky nang x hoi. hieu qua cac ((tac ban) OR (cac ban)) ((thang tien) or (bang tien)) cua tre".
• Adding a wildcard symbol may retrieve word variants: so sanh ky nang x hoi. hieu qua cac ((tac ban) OR (cac ban)) ((thang tien) or (bang tien)) cua tre*.