Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
va thanh » gia thanh, ban thanh, va tinh
cau treo » cau theo, cau tren, cau triet
sang mai » sang ma, sang tai, lang mai
ky sang » ky nang, ky dang, ky tang
mai hoi » mai khoi, dai hoi, lai hoi
va cao » va cac, va co, va dao
suc va » duc va, tuc va, luc va
ve cao » ve bao, ve cac, ve co

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: tu cac ky sang mai hoi. hieu ((ve cao) OR (va cao)) suc va thanh tai ((cau treo) OR (cau thi))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky sang mai hoi. hieu ((ve cao) OR (va cao)) suc va thanh tai ((cau treo) or (cau thi))~".
• Adding a wildcard symbol may retrieve word variants: tu cac ky sang mai hoi. hieu ((ve cao) OR (va cao)) suc va thanh tai ((cau treo) or (cau thi))*.