Perhaps you should try some spelling variations:
"coder decoding _ algorithm complexity" » "coder decoding _ algorithms complexity" (Expand search), "coder decoding _ algorithmic complexity" (Expand search), "coding decoding _ algorithm complexity" (Expand search), "coder decoder _ algorithm complexity" (Expand search), "barcode decoding _ algorithm complexity" (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 decoding _ algorithm complexity") OR ("api pitons python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder decoding _ algorithm complexity\") OR (\"api pitons python python programming\"))*".
• Removing quotes may allow a broader search: (( coder decoding _ algorithm complexity ) OR ( api pitons python python programming ))*.