Perhaps you should try some spelling variations:
rates human » frames human, routes human, wages human
case rates » base rates, wage rates, dose rates
human case » human cases, human caused, human causes
sts human » its human, sdgs human, vs human
young men » young women
yang fan » zhang fan, yang dean, yang yang
yang jui » yang judy, yang di, yang xi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((yang fan) or (wang yan))) or (yang jui))ng sts human case rates human young men ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((yang fan) OR (wang yan))) OR (yang jui))ng sts human case rates human young men ;.
• Adding a wildcard symbol may retrieve word variants: ((((yang fan) or (wang yan))) or (yang jui))ng sts human case rates human young men ;*.