Perhaps you should try some spelling variations:
"coder coding and computational complexity" » "coder coding _ computational complexity" (Expand search), "modern coding and computational complexity" (Expand search), "color coding and computational complexity" (Expand search), "odor coding and computational complexity" (Expand search), "coder coding rna computational complexity" (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 coding and computational complexity") OR ("via python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding and computational complexity\") OR (\"via python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coding and computational complexity ) OR ( via python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coding and computational complexity") OR ("via python python python programming"))*.