Perhaps you should try some spelling variations:
human demand » human remains, loan demand, human human
demand case » demand fase, demand based, demand age
hyoung gun » young eun
yang yang » wang yang, wang yan
case case » base case, case based, use case
yang ka » yang fan, yang yao
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 ka) OR (yang yang))) OR (yang yi))nr 1 human demand case case hyoung gun ;~.
• Adding a wildcard symbol may retrieve word variants: ((((yang ka) or (yang yang))) or (yang yi))nr 1 human demand case case hyoung gun ;*.