Perhaps you should try some spelling variations:
"americas estres familiar." » "america entre familiar.", "america tres familiar.", "americas resumen familiar.", "americas empresa familiar.", "americas entorno familiar."
"americas entre comillas." » "american theatre comillas."
"americano en semillas." » "americana en semillas.", "americano de semillas.", "americano las semillas."

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: (((("americas estres familiar.") or ("americas entre comillas."))) or ("americano en semillas."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("americas estres familiar.") OR ("americas entre comillas."))) OR ("americano en semillas.")).
• Removing quotes may allow a broader search: (((( americas estres familiar. ) or ( americas entre comillas. ))) or ( americano en semillas. )).
• Adding a wildcard symbol may retrieve word variants: (((("americas estres familiar.") or ("americas entre comillas."))) or ("americano en semillas."))*.