Perhaps you should try some spelling variations:
"neira para investigacion" » "neira para investigaciones", "neira carte investigacion", "neira una investigacion", "negra para investigacion", "neira maria investigacion", "letra para investigacion"
"neira ana investigacion" » "neira una investigacion", "neira en investigacion", "neira a investigacion", "vieira ana investigacion"
"beiras la investigacion" » "beira la investigacion", "beiras ana investigacion", "beiras mas investigacion"

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 ((("neira para investigacion") OR ("neira ana investigacion"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("beiras la investigacion") OR ((("neira para investigacion") OR ("neira ana investigacion"))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"beiras la investigacion\") or (((\"neira para investigacion\") OR (\"neira ana investigacion\"))))*".
• Removing quotes may allow a broader search: (( beiras la investigacion ) or ((( neira para investigacion ) OR ( neira ana investigacion ))))*.