Perhaps you should try some spelling variations:
"lucas con investigacion" » "lucas en investigacion", "lucas foca investigacion", "lucas fcsh investigacion", "luchar con investigacion", "placas con investigacion", "lucha con investigacion"
"beiras la investigacion" » "beira la investigacion", "beiras ana investigacion", "beiras mas investigacion"
"becas la investigacion" » "secas la investigacion", "brechas la investigacion", "ruecas 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: (((("becas la investigacion") or ("beiras la investigacion"))) or ("lucas con investigacion"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("becas la investigacion") OR ("beiras la investigacion"))) OR ("lucas con investigacion")).
• Removing quotes may allow a broader search: (((( becas la investigacion ) or ( beiras la investigacion ))) or ( lucas con investigacion )).
• Adding a wildcard symbol may retrieve word variants: (((("becas la investigacion") or ("beiras la investigacion"))) or ("lucas con investigacion"))*.