Perhaps you should try some spelling variations:
"coder _ propagation algorithm function" » "coder _ approximation algorithm function" (Expand search), "coder _ projections algorithm function" (Expand search), "coder _ approximation algorithms function" (Expand search), "coder _ propagation algorithm friction" (Expand search), "coder _ propagation algorithmic functions" (Expand search), "coder _ propagation algorithms functional" (Expand search)
"via python python python programming" » "via pythons python python programming" (Expand search), "via piton python python programming" (Expand search), "via pitons python python programming" (Expand search), "in python python python programming" (Expand search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder _ propagation algorithm function") OR ("via python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder _ propagation algorithm function\") OR (\"via python python python programming\"))".
• Removing quotes may allow a broader search: (( coder _ propagation algorithm function ) OR ( via python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder _ propagation algorithm function") OR ("via python python python programming"))*.