Perhaps you should try some spelling variations:
"coder model database duplication problem" » "coder model database replication problem" (Expand search), "coder model database application problem" (Expand search), "coder model database publication problem" (Expand search), "coder model database lubrication problems" (Expand search), "coder model database location problem" (Expand search), "coder model database allocation problem" (Expand search), "coder soil database duplication problem" (Expand search), "coder nosql database duplication problem" (Expand search), "cover model database duplication problem" (Expand search), "decoder model database duplication problem" (Expand search), "copper model database duplication 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 model database duplication problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder model database duplication problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder model database duplication problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder model database duplication problem") OR ("api python python python programming"))*.