Perhaps you should try some spelling variations:
scoping work » skipping work, scoping note, losing 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 ban » wang yan, wang dan, wang yang
ban know » can know, a know, ban nor

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