Perhaps you should try some spelling variations:
serie antropologia » serie antologias, sociales antropologia
de antropologia » la antropologia
antropologia en » antropologia del, antropologia y, antropologia general
en ecologia » en tecnologia, una ecologia, en economia
de economia » y economia, la economia

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( de antropologia en ecologia. ) or ( serie antropologia de economia. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( de antropologia en ecologia. ) OR ( serie antropologia de economia. )).
• Adding a wildcard symbol may retrieve word variants: (( de antropologia en ecologia. ) or ( serie antropologia de economia. ))*.