Perhaps you should try some spelling variations:
los editores » los escritores, ril editores, los factores
dos editores » dos escritores, los auditores, ril editores
de editores » de auditores, b editores, y editores
y medicina » de medicina, la medicina, en medicina
du de » de de, ou de, tu de
medianas, » mediana,, mediante,, medicas,

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: (( y medicina, du de editores. ) OR ( y medianas, duke ((dos editores) OR (los editores)). ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( y medicina, du de editores. ) or ( y medianas, duke ((dos editores) OR (los editores)). ))~".
• Adding a wildcard symbol may retrieve word variants: (( y medicina, du de editores. ) or ( y medianas, duke ((dos editores) OR (los editores)). ))*.