Perhaps you should try some spelling variations:
"coder coder material detection problem" » "coder coder bacterial detection problem" (Expand search), "coder coder material selection problem" (Expand search), "coder coder materials selection problem" (Expand search), "coder coder material detection program" (Expand search), "coder coder material demarcation problem" (Expand search), "coder poder material detection problem" (Expand search), "coder cover materials detection problem" (Expand search), "coder powder material detection problem" (Expand search), "coder decoder material detection problem" (Expand search), "code code material detection problem" (Expand search), "decoder codec material detection 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 material detection problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder material detection problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder material detection problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder material detection problem") OR ("api python python python programming"))*.