Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trung » thanh trung, hanh trang, manh trung
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
khoan cam » khoa cam, khoan va, phan cam
cong san » cong tac
than cau » toan cau, phan cau, than cap
cua chu » sua chua
chu van » cuu van, chu han
khan ap » khan cap, han ap, khan dam

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

• Performing a fuzzy search may retrieve terms with similar spellings: cua chu van - hanh trung cua nhung cong san ((than cau) or (((khan ap) or (khoan cam))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cua chu van - hanh trung cua nhung cong san ((than cau) OR (((khan ap) OR (khoan cam)))).
• Adding a wildcard symbol may retrieve word variants: cua chu van - hanh trung cua nhung cong san ((than cau) or (((khan ap) or (khoan cam))))*.