Perhaps you should try some spelling variations:
decrease complex » disease complex (Expand search), decreased compared (Expand search), protease complex (Expand search)
complex problems » complex projects (Expand search)
decrease rate » decreased rate (Expand search), decreases rate (Expand search), increase rate (Expand search)
rate decrease » rats decreases (Expand search), rate increase (Expand search), to decrease (Expand search)
piton python » pitons python (Expand search), in python (Expand search), with python (Expand search)
python api » python and (Expand search)
api piton » api 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: "(( decrease rate decrease complex problems ) OR ( python api piton python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease rate decrease complex problems ) OR ( python api piton python programming ))*.