Perhaps you should try some spelling variations:
"apuntes generales" » "aspectos generales", "asientos generales", "manuales generales"
"parte generales" » "cortes generales", "arte general", "gastos generales", "arte generales", "art generales"
"parte general" » "arte general", "art general"
"arts general" » "art general", "arte general", "plants general"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((((("parte generales") OR ("apuntes generales"))) or ("parte general"))) or ("arts general"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("parte generales") OR ("apuntes generales"))) OR ("parte general"))) OR ("arts general"))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"parte generales\") OR (\"apuntes generales\"))) or (\"parte general\"))) or (\"arts general\"))*".
• Removing quotes may allow a broader search: (((((( parte generales ) OR ( apuntes generales ))) or ( parte general ))) or ( arts general ))*.