Perhaps you should try some spelling variations:
human demands » human demand, human wetlands, human remains
demands base » demands based, demand based, demand case
wage hyoung » wage young, wang hyoung
hyoung gun » young eun
yang yang » wang yang, wang yan
base wage » base case
yang fan » zhang fan, yang dean, yang jin
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 fan) OR (yang yang))) OR (yang yi))nr 1 human demands base wage hyoung gun ;~.
• Adding a wildcard symbol may retrieve word variants: ((((yang fan) or (yang yang))) or (yang yi))nr 1 human demands base wage hyoung gun ;*.