Perhaps you should try some spelling variations:
their properties » the properties (Expand search), thermal properties (Expand search), paper properties (Expand search)
decrease their » decrease the (Expand search), increase their (Expand search), decreases the (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
decrease of » decrease in (Expand search)
of decrease » or decrease (Expand search), not decrease (Expand search), to decrease (Expand search)
python api » python and (Expand search)

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

• Removing quotes may allow a broader search: (( decrease of decrease their properties ) OR ( python api python python programming ))~.