Perhaps you should try some spelling variations:
"neira ana investigacion" » "neira para investigacion", "neira en investigacion", "neira a investigacion", "vieira ana investigacion"
"basicas una investigacion" » "basicas de investigacion", "basicas e investigacion", "basicas ciencia investigacion", "basica una investigacion", "basicos una investigacion", "basicas uned investigacion"
"beira la investigacion" » "beiras la investigacion", "beira los investigacion", "vieira 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 ((("basicas una investigacion") or ("neira ana investigacion"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("beira la investigacion") OR ((("basicas una investigacion") OR ("neira ana investigacion"))))*.
• Removing quotes may allow a broader search: (( beira la investigacion ) or ((( basicas una investigacion ) or ( neira ana investigacion ))))*.