Perhaps you should try some spelling variations:
cang thang » dang thanh
cong thanh » dong thanh, cong trinh, cong tan
phap sinh » phau sinh, phai sinh, phap tinh
bang cong » dang cong, bang song, hang cong
thi phap » theo phap, thi hai, thi ha
cua bang » chua bang, cua ban, cua dang
cong san » cong tac
toan ban » van ban
toan cao » toan tap

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