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
phan cac » nhan cach, phan dau, phan lap
cua chu » sua chua
chu van » cuu van, chu han

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 (((phan cac) 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 (((phan cac) OR (khoan cam)))).
• Adding a wildcard symbol may retrieve word variants: cua chu van - hanh trung cua nhung cong san ((than cau) or (((phan cac) or (khoan cam))))*.