Perhaps you should try some spelling variations:
research white » research while, research write, research what
written paper » written after, writing paper
white papers » state papers
write paper » waste paper, writing paper, write chapter

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