Perhaps you should try some spelling variations:
sampling defects » sampling effects (Expand search), sampling devices (Expand search), sampling effect (Expand search)
defects decrease » events decrease (Expand search), elements decrease (Expand search), defects created (Expand search)
decrease based » decreased base (Expand search), decrease blood (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: (( sampling defects decrease based program ) OR ( python code python python programming ))~.