Perhaps you should try some spelling variations:
"beiras e investigacion" » "beiras de investigacion", "beiras de investigaciones", "beiras en investigacion", "meiras de investigacion"
"beiras la investigacion" » "beiras ana investigacion", "beiras mas investigacion", "heras la investigacion"
"beira la investigacion" » "beira los investigacion", "vieira la investigacion", "era la 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 ("beira la investigacion"))) or ("beiras e investigacion"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("beiras la investigacion") OR ("beira la investigacion"))) OR ("beiras e investigacion"))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"beiras la investigacion\") OR (\"beira la investigacion\"))) or (\"beiras e investigacion\"))*".
• Removing quotes may allow a broader search: (((( beiras la investigacion ) OR ( beira la investigacion ))) or ( beiras e investigacion ))*.