Perhaps you should try some spelling variations:
"coder coding using optical problem" » "coder coding using optimal problem" (Expand search), "coder coding using optical probe" (Expand search), "coder coding using optical probes" (Expand search), "modern coding using optical problem" (Expand search), "color coding using optical problem" (Expand search), "odor coding using optical problem" (Expand search), "coder loading using optical problem" (Expand search), "coder modeling using optical problem" (Expand search), "coder drying using 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding using optical problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coding using optical problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coding using optical problem") OR ("api python python python programming"))*.