Perhaps you should try some spelling variations:
reference method » difference method (Expand search), differences method (Expand search), difference methods (Expand search)
python process » action process (Expand search)
method pitons » method pin (Expand search), method porous (Expand search)
coder python » codigo python (Expand search), compra python (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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( coder python code python process ) OR ( reference method pitons python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( coder python code python process ) OR ( reference method pitons python programming ))*.