Perhaps you should try some spelling variations:
decrease separation » decrease cooperation (Expand search), decrease migration (Expand search), microphase separation (Expand search)
separation process » separation processes (Expand search)
decreasing costs » decreasing cost (Expand search), decrease costs (Expand search), decreasing rest (Expand search)
costs decrease » loss decrease (Expand search), not decrease (Expand search), cells decrease (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
python code » python coding (Expand search), python redes (Expand search)
code python » codigo python (Expand search), pacote python (Expand search)

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

• Removing quotes may allow a broader search: (( decreasing costs decrease separation process ) OR ( python code python python programming ))~.