Perhaps you should try some spelling variations:
"placas con investigacion" » "placas en investigacion", "placas foca investigacion", "placas fcsh investigacion", "plantas con investigacion", "placas como investigacion", "plasticas con investigacion"
"plata con investigacion" » "plata en investigacion", "plata foca investigacion", "plata fcsh 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 con investigacion") OR ("plata con investigacion"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("becas la investigacion") OR ((("placas con investigacion") OR ("plata con investigacion")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"becas la investigacion\") or (((\"placas con investigacion\") OR (\"plata con investigacion\"))))".
• Removing quotes may allow a broader search: (( becas la investigacion ) or ((( placas con investigacion ) OR ( plata con investigacion )))).
• Adding a wildcard symbol may retrieve word variants: (("becas la investigacion") or ((("placas con investigacion") OR ("plata con investigacion"))))*.