Perhaps you should try some spelling variations:
serie ideologia » serie teologia, serie arqueologia, serie sociologia
antropologia y » antropologia de
ideologia de » ideologia y, teologia de, ideologia en
de ecologia » de oncologia, de economia, la ecologia
y ecologia » la ecologia, y economia
sociales » social

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: (( sociales antropologia y ecologia. ) OR ( serie ideologia de ecologia. ))~.
• Adding a wildcard symbol may retrieve word variants: (( sociales antropologia y ecologia. ) or ( serie ideologia de ecologia. ))*.