Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chua xang » chua nang, chu bang, chua dong
canh tran » canh tranh, hanh trang, banh trang
van nhung » van nhuong, va nhung, van hung
tran van » luan van
san phan » van phan, sat phan, dan phan
chuc » thuc, chu, phuc

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

• Performing a fuzzy search may retrieve terms with similar spellings: chao ((chua xang) or (chuc nang)) - canh tran van nhung cong ((san phan) OR (san pham)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao ((chua xang) OR (chuc nang)) - canh tran van nhung cong ((san phan) OR (san pham)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "chao ((chua xang) or (chuc nang)) - canh tran van nhung cong ((san phan) OR (san pham)) cau".
• Adding a wildcard symbol may retrieve word variants: chao ((chua xang) or (chuc nang)) - canh tran van nhung cong ((san phan) OR (san pham)) cau*.