Perhaps you should try some spelling variations:
social antropologia » sociales antropologia, socio antropologica, social anthropology
antropologia en » antropologia del, antropologia de, antropologia y
antropologia la » antropologia de, antropologia y, antropologia e
en economia » una economia, y economia, la economia
la biologia » la sociologia

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: (( social antropologia en economia. ) OR ( social antropologia la biologia. ))~.
• Adding a wildcard symbol may retrieve word variants: (( social antropologia en economia. ) or ( social antropologia la biologia. ))*.