Perhaps you should try some spelling variations:
germany baden » germany sweden, germany aachen, germany bremen
2016 germany » 2012 germany, 2011 germany, 2015 germany
baden wage » base wage, based wage
risk 2016 » risk 2010, risk 2011, risk 2012
yang jui » yang judy, yang xi, yang yi
gap long » gap along, gap among, gap going
long gun » long run, long du, long han
nan yan » nan ya, wang yan, qian yan

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: ((((nan yan) OR (yang jui))) OR (yang di))risk 2016 germany baden wage gap long gun ;~.
• Adding a wildcard symbol may retrieve word variants: ((((nan yan) or (yang jui))) or (yang di))risk 2016 germany baden wage gap long gun ;*.