Perhaps you should try some spelling variations:
research written » research within, research writing, research twitter
research write » research white, research site, research waste
written paper » written after, writing paper
white papers » white paper, late papers
state papers » staff papers
write paper » white paper, waste paper, writing paper

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: (((( research write paper ) OR ( research written paper ))) OR ( research ((white papers) OR (state papers)) )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( research write paper ) or ( research written paper ))) or ( research ((white papers) OR (state papers)) ))".
• Adding a wildcard symbol may retrieve word variants: (((( research write paper ) or ( research written paper ))) or ( research ((white papers) OR (state papers)) ))*.