Perhaps you should try some spelling variations:
benito perez » benito juarez (Expand Search)
letter nerve » letter nurse (Expand Search), matter nerve (Expand Search), letter nervous (Expand Search)
benign beale » benign bile (Expand Search), benign base (Expand Search), benign breast (Expand Search)
perez clase » perez case (Expand Search), perez chase (Expand Search), perez claire (Expand Search)
beale case » beale's case (Expand Search), female case (Expand Search), male case (Expand Search)
bj letter » bj letters (Expand Search), b.j letters (Expand Search), _ letter (Expand Search)
j benito » j benitez (Expand Search)
j benign » j benigno (Expand Search), _ benign (Expand Search), a benign (Expand Search)
nerve c » nerve cn (Expand Search), nerve co (Expand Search), nerve ct (Expand Search)
case de » case due (Expand Search)
c dos » e dos (Expand Search), a dos (Expand Search)

You can also try:

• Europeana
• Digital Public Library of America
• CORE

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: (( bj letter nerve c dos ) OR ((( j benito perez clase de ) OR ( j benign beale case de ))))~.
• Adding a wildcard symbol may retrieve word variants: (( bj letter nerve c dos ) or ((( j benito perez clase de ) or ( j benign beale case de ))))*.