Perhaps you should try some spelling variations:
disease progress » disease process (Expand search), disease progression (Expand search)
disease disease » diseases disease (Expand search)
decrease spot » decrease sod (Expand search), decrease soon (Expand search), decrease of (Expand search)
python coding » action coding (Expand search), python code (Expand search)
spot disease » host disease (Expand search), wilt disease (Expand search)
coding piton » coding in (Expand search), coding with (Expand search), coding to (Expand search)
piton python » pitons python (Expand search), in python (Expand search), with 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 spot disease disease progress ) OR ( python coding piton python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease spot disease disease progress ) OR ( python coding piton python programming ))*.