Perhaps you should try some spelling variations:
redner using » better using, reduce using, router using
using lean » using less, using linear
how slower » has slower, how slow, low lower
wang yong » wang yang, wang hyoung, wang yan
phang der » anhang der, klang der, zwang der
lean how » learn how, clean how, mean how

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: wang yong ((phang der) OR (gang der)) redner using lean how slower ;~.
• Adding a wildcard symbol may retrieve word variants: wang yong ((phang der) or (gang der)) redner using lean how slower ;*.