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