Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
tranh cua » doanh cua, manh cua
cua sinh » hoa sinh, va sinh
tang cua » mang cua, hang cua, tang luan
cong tan » cong tac, cong san, cong thanh
toan ban » van ban
hoi cua » hoi chuc

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi cua sinh - hanh ((tang cua) or (tranh cua)) thuong cong tan ((thanh san) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi cua sinh - hanh ((tang cua) OR (tranh cua)) thuong cong tan ((thanh san) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoi cua sinh - hanh ((tang cua) or (tranh cua)) thuong cong tan ((thanh san) or (toan ban))*.