Perhaps you should try some spelling variations:
"brechas y investigacion" » "brechas e investigacion", "brechas a investigacion", "brechas 2 investigacion", "flechas y investigacion"
"vieira la investigacion" » "vieira ana investigacion", "vieira de investigacion", "vieira e investigacion"
"beira la investigacion" » "beiras la investigacion", "beira los 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: (((("beira la investigacion") OR ("vieira la investigacion"))) or ("brechas y investigacion"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("beira la investigacion") OR ("vieira la investigacion"))) OR ("brechas y investigacion"))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"beira la investigacion\") OR (\"vieira la investigacion\"))) or (\"brechas y investigacion\"))*".
• Removing quotes may allow a broader search: (((( beira la investigacion ) OR ( vieira la investigacion ))) or ( brechas y investigacion ))*.