Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
vu thanh » su thanh, vu khanh, cuu thanh
thanh ky » hanh ky, than ky, thanh tay
va thanh » gia thanh, va tinh, le thanh
cua viet » ca viet, hoa viet, cua vat
qua cac » cua cac
cac xuc » cam xuc, cac nuoc, chat xuc
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu thanh ky nang x ho. hieu qua cac xuc ((va thanh) or (ban thanh)) sinh ((cua tre) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu thanh ky nang x ho. hieu qua cac xuc ((va thanh) OR (ban thanh)) sinh ((cua tre) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: vu thanh ky nang x ho. hieu qua cac xuc ((va thanh) or (ban thanh)) sinh ((cua tre) or (cua viet))*.