Perhaps you should try some spelling variations:
"neira maria investigaciones" » "neira macias investigaciones", "neira para investigaciones", "neira mira investigaciones", "neira marian investigaciones", "eneida maria investigaciones", "nora maria investigaciones"
"lucas el investigacion" » "lucas e investigacion", "lucas en investigacion", "lucas al investigacion", "lucas del investigacion", "aulas el investigacion", "lucas la investigacion"
"secas de investigacion" » "secas la investigacion", "becas de investigacion", "secado de investigacion", "cas de 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: (((("lucas el investigacion") or ("secas de investigacion"))) or ("neira maria investigaciones"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lucas el investigacion") OR ("secas de investigacion"))) OR ("neira maria investigaciones")).
• Removing quotes may allow a broader search: (((( lucas el investigacion ) or ( secas de investigacion ))) or ( neira maria investigaciones )).
• Adding a wildcard symbol may retrieve word variants: (((("lucas el investigacion") or ("secas de investigacion"))) or ("neira maria investigaciones"))*.