Perhaps you should try some spelling variations:
"coder decoder sequence matching problem" » "coder decoder sequence searching problem" (Expand search), "coder decoder sequence teaching problem" (Expand search), "coder decoder sequence mapping problem" (Expand search), "coder leader sequence matching problem" (Expand search), "coder reader sequence matching problem" (Expand search), "coder ladder sequence matching problem" (Expand search), "coder decoder sequence packing problem" (Expand search), "coder decoder sequence cutting problem" (Expand search), "encoder decoder sequence matching problem" (Expand search)
"api python python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pitons python python programming" (Expand search), "rpa 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 decoder sequence matching problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder decoder sequence matching problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder decoder sequence matching problem ) OR ( api python python python programming ))*.