Perhaps you should try some spelling variations:
"coder coder to optical problem" » "coder coder to optimal problem" (Expand search), "coder coder to optical probe" (Expand search), "coder coder to optical probes" (Expand search), "coder decoder to optical problem" (Expand search), "code code to optical problem" (Expand search), "decoder codec to optical problem" (Expand search), "coder coder bio optical problem" (Expand search), "coder coder an optical problem" (Expand search), "coder coder by optical problem" (Expand search), "coder code to optical problem" (Expand search), "coder codes to optical problem" (Expand search), "coder codec to optical 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 coder to optical problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder to optical problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder to optical problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder to optical problem") OR ("api python python python programming"))*.