Perhaps you should try some spelling variations:
"coder implementation bit string problem" » "code implementation bit string problem" (Expand search), "decoder implementation bit string problem" (Expand search), "model implementation bit string problem" (Expand search), "coder implementation bim string problem" (Expand search), "coder implementation in string problem" (Expand search), "coder implementation at string problem" (Expand search), "coder implementation bit sizing problem" (Expand search), "coder implementation bit rostering problem" (Expand search), "coder implementation bit sharing problems" (Expand search)
"python code python python programming" » "python code pythons python programming" (Expand search), "python code piton python programming" (Expand search), "python code pitons python programming" (Expand search), "python codigo python python programming" (Expand search), "python pacote 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 implementation bit string problem") OR ("python code python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder implementation bit string problem\") OR (\"python code python python programming\"))".
• Removing quotes may allow a broader search: (( coder implementation bit string problem ) OR ( python code python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder implementation bit string problem") OR ("python code python python programming"))*.