Perhaps you should try some spelling variations:
"coder coder complexity doi processing" » "coder code complexity doi processing" (Expand search), "coder model complexity doi processing" (Expand search), "coder lower complexity doi processing" (Expand search), "coder coder complexity how processing" (Expand search), "coder coder complexity dc processing" (Expand search), "coder coder complexity dsp processing" (Expand search), "coder coder complexity i processing" (Expand search), "coder coder complexity mri processing" (Expand search), "coder coder complexity rock processing" (Expand search), "coder decoder complexity doi processing" (Expand search), "code code complexity doi processing" (Expand search), "decoder codec complexity doi processing" (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 coder complexity doi processing") OR ("api pitons python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder complexity doi processing\") OR (\"api pitons python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder complexity doi processing ) OR ( api pitons python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder complexity doi processing") OR ("api pitons python python programming"))*.