Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh hai » thanh phan, thanh hoa, thanh san
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
duc van » duc va, duc tan, duc manh
hai cua » thai cua, dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ve cao » ve bao, ve cac, ve co
va cao » va cac, va co, va dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky tang xa hoi. hieu ((ve cao) OR (va cao)) duc van thanh hai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky tang xa hoi. hieu ((ve cao) OR (va cao)) duc van thanh hai cua tre".
• Adding a wildcard symbol may retrieve word variants: su sac ky tang xa hoi. hieu ((ve cao) OR (va cao)) duc van thanh hai cua tre*.