Perhaps you should try some spelling variations:
functional differences » functional differential (Expand search), functional divergence (Expand search), generational differences (Expand search)
differences decrease » differences create (Expand search), differences decent (Expand search), differences across (Expand search)
code functional » core functional (Expand search), some functional (Expand search), care functional (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
code code » code cdc (Expand search)

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

• Removing quotes may allow a broader search: (( code code functional differences decrease ) OR ( _ python python python programming ))~.