Perhaps you should try some spelling variations:
antropologia y » antropologia de
serie analisis » series analysis, aire analisis, arte analisis
y etnologia » y ecologia
analisis la » analisis a, analisis los, analisis de
la ecologia » la economia, la biologia, la psicologia
sociales » social

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

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