Perhaps you should try some spelling variations:
cronicas generales » cronica general, teorias generales, cronicas mineras
generales python » generales por
social cronicas » social critica, local cronica, sexual cronicas
python computer » methods computer
programs* » programa*

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

• Performing a fuzzy search may retrieve terms with similar spellings: social cronicas generales python computer (programs* OR programas*)~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "social cronicas generales python computer (programs* OR programas*)".
• Adding a wildcard symbol may retrieve word variants: social cronicas generales python computer (programs* OR programas*)*.