Perhaps you should try some spelling variations:
"coder simulation _ coding problems" » "code simulation _ coding problems" (Expand search), "model simulation _ coding problems" (Expand search), "power simulation _ coding problems" (Expand search), "coder simulation _ loading problems" (Expand search), "coder simulation _ counting problems" (Expand search), "coder simulation _ covering problems" (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 simulation _ coding problems") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder simulation _ coding problems\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder simulation _ coding problems ) OR ( api python python python programming ))*.