Perhaps you should try some spelling variations:
international labour » international law
international hwang » international human, internationale umgang, international health
articles reports » articles papers
labour articles » labour practices
case reports » case report, case reporting, panel reports
hwang case » hwang jane, bang case, healing case

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: (( international labour articles reports ) OR ( international hwang case reports ))~.
• Adding a wildcard symbol may retrieve word variants: (( international labour articles reports ) or ( international hwang case reports ))*.