Perhaps you should try some spelling variations:
historia americana » historia mexicana, history american, history americas
"lecturas del " » "lectures diel ", "lectura de ", "lectures de "
"lectura del " » "lectura de ", "lettura del ", "lectura en "
"lecture de " » "lecture _ ", "lecture 1 ", "lecture 2 "

Try widening your search to All Fields.

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: (("lecturas del ") OR ((("lectura del ") OR ("lecture de "))))historia americana"".
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"lecturas del \") or (((\"lectura del \") OR (\"lecture de \"))))historia americana\"\"".
• Removing quotes may allow a broader search: (( lecturas del ) or ((( lectura del ) OR ( lecture de ))))historia americana.