Perhaps you should try some spelling variations:
"coder in propagation algorithm and" » "coder in approximation algorithm and" (Expand search), "coder in projections algorithm and" (Expand search), "coder in approximation algorithms and" (Expand search), "coder on propagation algorithm and" (Expand search), "coder and propagation algorithm and" (Expand search), "coder _ propagation algorithm and" (Expand search), "coder in propagation algorithms and" (Expand search), "coder in propagation algorithm based" (Expand search), "coder in propagation algorithm _" (Expand search), "code in propagation algorithm and" (Expand search), "codes in propagation algorithm and" (Expand search), "poder in propagation algorithm and" (Expand search)
"api pitons python python programming" » "api pitons pythons python programming" (Expand search), "api pitons piton python programming" (Expand search), "api pitons pytm python programming" (Expand search), "api citons python python programming" (Expand search), "api pitoni python python programming" (Expand search), "api pitoes 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 in propagation algorithm and") OR ("api pitons python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder in propagation algorithm and\") OR (\"api pitons python python programming\"))".
• Removing quotes may allow a broader search: (( coder in propagation algorithm and ) OR ( api pitons python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder in propagation algorithm and") OR ("api pitons python python programming"))*.