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
dung cua » dung luan, dung cho
cong dan » cong san, cong tan, huong dan
toan cao » toan tap
toan ban » van ban
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 (dung cua)) tong cong dan ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho bien tinh - hanh ((trung cua) OR (dung cua)) tong cong dan ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho bien tinh - hanh ((trung cua) or (dung cua)) tong cong dan ((toan cao) or (toan ban))*.