Perhaps you should try some spelling variations:
"beiras una investigacion" » "beiras de investigacion", "beiras e investigacion", "beiras ciencia investigacion", "beiras ana investigacion", "beiras en investigacion", "beiras inaki investigacion"
"vieira ana investigacion" » "vieira para investigacion", "vieira en investigacion", "vieira a investigacion", "neira ana investigacion"
"beiras la investigacion" » "beira la investigacion", "beiras ana investigacion", "beiras mas investigacion"

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: (((("beiras la investigacion") or ("beiras una investigacion"))) or ("vieira ana investigacion"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("beiras la investigacion") OR ("beiras una investigacion"))) OR ("vieira ana investigacion")).
• Removing quotes may allow a broader search: (((( beiras la investigacion ) or ( beiras una investigacion ))) or ( vieira ana investigacion )).
• Adding a wildcard symbol may retrieve word variants: (((("beiras la investigacion") or ("beiras una investigacion"))) or ("vieira ana investigacion"))*.