Perhaps you should try some spelling variations:
human demands » human demand, human wetlands, human remains
demands based » demand based, demand case, demand fase
wage hyoung » wage young, wang hyoung
based wage » base wage, based age, based water
hyoung gun » young eun
yang yang » wang yang, wang yan
yang yi » yang di, yang xi, yang jui
1 human » 2 human, 3 human

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: ((((yang dean) OR (yang yang))) OR (yang yi))nr 1 human demands based wage hyoung gun ;~.
• Adding a wildcard symbol may retrieve word variants: ((((yang dean) or (yang yang))) or (yang yi))nr 1 human demands based wage hyoung gun ;*.