Perhaps you should try some spelling variations:
"lucas ciencia investigacion" » "las ciencias investigacion", "logos ciencia investigacion", "atlas ciencia investigacion"
"lucanor la investigacion" » "lucanor y investigacion", "lucanor de investigacion", "lucanor et investigacion"
"lucan la investigacion" » "lucan ma investigacion", "lucas la investigacion", "duncan 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: (((("lucan la investigacion") or ("lucanor la investigacion"))) or ("lucas ciencia investigacion"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lucan la investigacion") OR ("lucanor la investigacion"))) OR ("lucas ciencia investigacion")).
• Removing quotes may allow a broader search: (((( lucan la investigacion ) or ( lucanor la investigacion ))) or ( lucas ciencia investigacion )).
• Adding a wildcard symbol may retrieve word variants: (((("lucan la investigacion") or ("lucanor la investigacion"))) or ("lucas ciencia investigacion"))*.