Perhaps you should try some spelling variations:
palacio series » palacio perez, placing series
loyola del » loyola die
loyola de » loyola die, loyola _, loyola 4
r palacio » _ palacio, _ palacios, el palacio
loyola r » loyola _, loyola 4, loyola a

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: (( ((loyola del) OR (loyola de)) palacio series on european energy policy ) OR ( loyola r palacio series on european energy policy )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((loyola del) OR (loyola de)) palacio series on european energy policy ) or ( loyola r palacio series on european energy policy ))".
• Adding a wildcard symbol may retrieve word variants: (( ((loyola del) OR (loyola de)) palacio series on european energy policy ) or ( loyola r palacio series on european energy policy ))*.