Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
va thanh » gia thanh, ban thanh, va tinh
qua hai » qua hoat
hai xuc » hai cuc, hai xu, chat xuc
cua tre » cua te, cuu tre, cua triet
can ky » van ky, ban ky, tan ky
dan ky » van ky
me hoi » le hoi
xuc va » duc va, tuc va, luc va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: su ((can ky) OR (dan ky)) nang ((me hoi) OR (xa hoi)). hieu qua hai xuc va thanh dai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((can ky) OR (dan ky)) nang ((me hoi) or (xa hoi)). hieu qua hai xuc va thanh dai cua tre~".
• Adding a wildcard symbol may retrieve word variants: su ((can ky) OR (dan ky)) nang ((me hoi) or (xa hoi)). hieu qua hai xuc va thanh dai cua tre*.