Perhaps you should try some spelling variations:
thuong con » thuong dong, truong cong, thong cong
cong phan » cong nhan, chong phap, cong thanh
cong khan » cong khanh, cong nhan, cong thanh
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap
bi tinh » vi tinh
con dan » cong dan, co dan, con ban
so bi » so di, so li, so ki

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: so bi tinh - thanh ((cong phan) OR (cong khan)) thuong con dan ((toan cau) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so bi tinh - thanh ((cong phan) OR (cong khan)) thuong con dan ((toan cau) or (toan cao))~".
• Adding a wildcard symbol may retrieve word variants: so bi tinh - thanh ((cong phan) OR (cong khan)) thuong con dan ((toan cau) or (toan cao))*.