Perhaps you should try some spelling variations:
"lacan una investigacion" » "lacan la investigacion", "lacan de investigacion", "lacan e investigacion", "sagan una investigacion", "adan una investigacion"
"lacan ma investigacion" » "lacan la investigacion", "lacan a investigacion", "lacan iap investigacion", "lucan ma investigacion", "lacan y investigacion", "bacan a investigacion"
"lucas ma investigacion" » "lucas la investigacion", "lucas a investigacion", "lucas iap investigacion", "lucan ma investigacion", "lucas el 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 ma investigacion") OR ("lacan una investigacion"))) OR ("lucas ma investigacion"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"lacan ma investigacion\") OR (\"lacan una investigacion\"))) or (\"lucas ma investigacion\"))~".
• Removing quotes may allow a broader search: (((( lacan ma investigacion ) OR ( lacan una investigacion ))) or ( lucas ma investigacion ))~.
• Adding a wildcard symbol may retrieve word variants: (((("lacan ma investigacion") OR ("lacan una investigacion"))) or ("lucas ma investigacion"))*.