Perhaps you should try some spelling variations:
"lacan una investigacion" » "lacan de investigacion", "lacan e investigacion", "lacan ciencia investigacion", "sagan una investigacion", "adan una investigacion"
"lacan y investigacion" » "lacan e investigacion", "lacan a investigacion", "lacan 2 investigacion"
"lujan la investigacion" » "lujan de investigacion", "juan la investigacion", "duran la investigacion"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lacan y investigacion") OR ("lacan una investigacion"))) OR ("lujan la investigacion"))~.
• Removing quotes may allow a broader search: (((( lacan y investigacion ) or ( lacan una investigacion ))) or ( lujan la investigacion ))~.
• Adding a wildcard symbol may retrieve word variants: (((("lacan y investigacion") or ("lacan una investigacion"))) or ("lujan la investigacion"))*.