Perhaps you should try some spelling variations:
cang thang » cong thanh, dang thanh
thang cua » thong cua, hang cua, than cua
bang cong » dang cong, bang song, hang cong
cua bang » chua bang, cua ban, cua dang
cong san » cong tac
toan ban » van ban
ha sinh » hoa sinh, nha sinh, va sinh
thi ha » thi hai, thi hanh

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: thi ha sinh - cang thang cua bang cong san ((toan ban) OR (((toan cao) OR (toan tap))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thi ha sinh - cang thang cua bang cong san ((toan ban) or (((toan cao) OR (toan tap))))~".
• Adding a wildcard symbol may retrieve word variants: thi ha sinh - cang thang cua bang cong san ((toan ban) or (((toan cao) OR (toan tap))))*.