Perhaps you should try some spelling variations:
"beira los investigacion" » "beira con investigacion", "beira hoy investigacion", "beira las investigaciones", "letra los investigacion", "mira los investigacion", "vera los investigacion"
"beiras la investigacion" » "beiras ana investigacion", "beiras mas investigacion", "heras la investigacion"
"beira la investigacion" » "vieira la investigacion", "era la investigacion", "cera la 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: (((("beira la investigacion") OR ("beiras la investigacion"))) or ("beira los investigacion"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("beira la investigacion") OR ("beiras la investigacion"))) OR ("beira los investigacion")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"beira la investigacion\") OR (\"beiras la investigacion\"))) or (\"beira los investigacion\"))".
• Removing quotes may allow a broader search: (((( beira la investigacion ) OR ( beiras la investigacion ))) or ( beira los investigacion )).
• Adding a wildcard symbol may retrieve word variants: (((("beira la investigacion") OR ("beiras la investigacion"))) or ("beira los investigacion"))*.