Perhaps you should try some spelling variations:
manh thanh » danh thanh, minh thanh, manh thang
thanh hai » thanh phan, thanh hoa, thanh san
kho tang » cao tang
duc manh » suc manh, duc anh, duc minh
cuu tre » cau tren, cau treo
tang xa » trang xa, tang ma, lang xa
cua tre » cua te, cua triet, dua tren
cac kho » cac khoi, cac khoa, cac khu
su cac » tu cac, su cao, su can
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 cac kho tang xa hoi. hieu ((ve cao) or (va cao)) duc manh thanh hai ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac kho tang xa hoi. hieu ((ve cao) OR (va cao)) duc manh thanh hai ((cua tre) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cac kho tang xa hoi. hieu ((ve cao) or (va cao)) duc manh thanh hai ((cua tre) OR (cuu tre))*".