Perhaps you should try some spelling variations:
"mexican revolution cuba." » "mexicana revolucion cuba.", "mexico evolucion cuba.", "mexican revolutions cuba.", "mexican revolucion cubana.", "mexican revolution era."
"mexican relations cuba." » "mexico relaciones cuba.", "maria relations cuba.", "american revolutions cuba.", "mexican revolutions cuba.", "mexican relations case.", "mexican relations turn."
"mexican religious cuba." » "medicine religious cuba.", "america religious cuba.", "media religious cuba."

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("mexican relations cuba.") OR ("mexican religious cuba."))) or ("mexican revolution cuba."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mexican relations cuba.") OR ("mexican religious cuba."))) OR ("mexican revolution cuba.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"mexican relations cuba.\") OR (\"mexican religious cuba.\"))) or (\"mexican revolution cuba.\"))".
• Removing quotes may allow a broader search: (((( mexican relations cuba. ) OR ( mexican religious cuba. ))) or ( mexican revolution cuba. )).
• Adding a wildcard symbol may retrieve word variants: (((("mexican relations cuba.") OR ("mexican religious cuba."))) or ("mexican revolution cuba."))*.