Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
chuc danh » chuc nganh, thuc hanh, chuc nang
chua xang » chua nang, chuc nang, chu bang
hanh tang » hanh trang, anh tang, hanh mang
cua thong » cua thuong, cua khong, cua tong
tang cua » mang cua, hang cua, tang luan
cong san » cong tac
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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: cho ((chuc danh) OR (chua xang)) - hanh tang cua thong cong san ((toan cau) OR (toan ban))~.
• Adding a wildcard symbol may retrieve word variants: cho ((chuc danh) or (chua xang)) - hanh tang cua thong cong san ((toan cau) or (toan ban))*.