Perhaps you should try some spelling variations:
"coder and variable modeling problem" » "coder and variable modelling problem" (Expand search), "coder and variable models problem" (Expand search), "coder and variable model problem" (Expand search), "coder and variable modeling problems" (Expand search), "coder and variable modelling problems" (Expand search), "coder _ variable modeling problem" (Expand search), "code and variable modeling problem" (Expand search), "codes and variable modeling problem" (Expand search), "poder and variable modeling 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 and variable modeling problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder and variable modeling problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder and variable modeling problem ) OR ( api python python python programming ))*.