Perhaps you should try some spelling variations:
scoping hong » scoping note, coping among, scoping work
scoping tool » scoring tool, scoping note, mapping tool
yuan wang » yan wang, yuan kang, yuan chang
know when » know what, know them, know who
wang a » wang _, fang a, lang a
a know » a known, _ know, i know

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: yuan wang a know when change ((scoping hong) OR (scoping tool)) seo ;~.
• Adding a wildcard symbol may retrieve word variants: yuan wang a know when change ((scoping hong) or (scoping tool)) seo ;*.