Perhaps you should try some spelling variations:
human causes » human cases, human caused, human case
causes rates » pass rates, causes case, rates rates
rates human » frames human, routes human, wages human
yang yang » wang yang, wang yan
young men » young women
yang fan » zhang fan, yang dean, yang jin
vs human » 1 human, 10 human
ng vs » kg vs

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 (yang yang))) or (yang di))ng vs human causes rates human young men ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((yang fan) OR (yang yang))) OR (yang di))ng vs human causes rates human young men ;.
• Adding a wildcard symbol may retrieve word variants: ((((yang fan) or (yang yang))) or (yang di))ng vs human causes rates human young men ;*.