Perhaps you should try some spelling variations:
"beijing students' autonomous operation" » "beijing students' autonomous operations", "beijing students' autonomous generation", "beijing students' autonomous creation", "beginning students' autonomous operation", "building students' autonomous operation", "bridging students' autonomous operation"
"beijing students' autonomous cooperation" » "beginning students' autonomous cooperation", "building students' autonomous cooperation", "bridging students' autonomous cooperation"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("beijing students' autonomous operation") or ("beijing students' autonomous cooperation"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("beijing students' autonomous operation") OR ("beijing students' autonomous cooperation")).
• Removing quotes may allow a broader search: (( beijing students' autonomous operation ) or ( beijing students' autonomous cooperation )).
• Adding a wildcard symbol may retrieve word variants: (("beijing students' autonomous operation") or ("beijing students' autonomous cooperation"))*.