Perhaps you should try some spelling variations:
decades changes » decadal changes (Expand search), indicates changes (Expand search)
python decades » python dados (Expand search), python redes (Expand search)
changes python » changes than (Expand search)
python codigo » python coding (Expand search), python code (Expand search)
coder python » compra python (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( coder python codigo python programming ) OR ( python decades changes python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( coder python codigo python programming ) OR ( python decades changes python programming ))*.