Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh dai » thanh hai, thanh tai, thanh dat
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
hieu ve » hieu van
hieu va » lieu va, hieu qua
xuc ban » duc ban, cuc ban, quoc 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 tang xa hoi. ((hieu ve) OR (hieu va)) cam xuc ban thanh dai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cac ky tang xa hoi. ((hieu ve) OR (hieu va)) cam xuc ban thanh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: su cac ky tang xa hoi. ((hieu ve) OR (hieu va)) cam xuc ban thanh dai cua tre*.