Perhaps you should try some spelling variations:
functional roles » functional role (Expand search), functional results (Expand search), functional responses (Expand search)
decreases these » decreases the (Expand search), decreases th2 (Expand search), decreases pest (Expand search)
these processes » the processes (Expand search), thermal processes (Expand search), change processes (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
at decreases » salt decreases (Expand search), and decreases (Expand search), but decreases (Expand search)
roles python » lines python (Expand search), reais python (Expand search)
decrease at » decrease and (Expand search), decrease in (Expand search), decrease of (Expand search)

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

• Removing quotes may allow a broader search: (( decrease at decreases these processes ) OR ( functional roles python python programming ))~.