Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh dai » thanh hai, thanh tai, thanh dat
nang xa » nang x, lang xa, nang ma
hieu ve » hieu van
hieu va » lieu va, hieu qua
cam duc » cam xuc, cao duc, pham duc
duc ban » duc tan, duc van, dua ban
cua tre » cua te, cuu tre, cua triet
su cac » tu cac, su cao, su can

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cac ky nang xa hoi. ((hieu ve) or (hieu va)) cam duc ban thanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac ky nang xa hoi. ((hieu ve) OR (hieu va)) cam duc ban thanh dai cua tre.
• Adding a wildcard symbol may retrieve word variants: su cac ky nang xa hoi. ((hieu ve) or (hieu va)) cam duc ban thanh dai cua tre*.