Perhaps you should try some spelling variations:
ii investigacion » iii investigacion, iv investigacion, iap investigacion
e investigacion » de investigacion, la investigacion, de investigaciones
a investigacion » la investigacion, una investigacion, de investigacion
lucanor e » lucanor de, lucanor et, lucanor y
lucas ii » lucas i, lucas el, lucas la
lucas a » lucas la, lucas f, lucas i

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( lucanor e investigacion ) or ((( lucas ii investigacion ) or ( lucas a investigacion ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( lucanor e investigacion ) OR ((( lucas ii investigacion ) OR ( lucas a investigacion )))).
• Adding a wildcard symbol may retrieve word variants: (( lucanor e investigacion ) or ((( lucas ii investigacion ) or ( lucas a investigacion ))))*.