Perhaps you should try some spelling variations:
"coder oder linear array problem" » "coder oder linear leray problem" (Expand search), "coder oder linear parity problem" (Expand search), "coder order linear array problem" (Expand search), "coder over linear array problem" (Expand search), "coder model linear array problem" (Expand search), "poder poder linear array problem" (Expand search), "der oder linear array problem" (Expand search), "coder decoder linear array 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 oder linear array problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder oder linear array problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder oder linear array problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder oder linear array problem") OR ("api python python python programming"))*.