Perhaps you should try some spelling variations:
bien tinh » bi tinh, yen tinh, diep tinh
trung cua » truong cua, trung tuan, trung cap
tong cong » trong cong, cong cong, dung cong
tang cua » mang cua, hang cua, tang luan
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap
ho bien » pho bien, hoa bien, so bien

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho bien tinh - hanh ((trung cua) or (tang cua)) tong cong dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho bien tinh - hanh ((trung cua) OR (tang cua)) tong cong dan than cao.
• Adding a wildcard symbol may retrieve word variants: ho bien tinh - hanh ((trung cua) or (tang cua)) tong cong dan than cao*.