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