Perhaps you should try some spelling variations:
"coder coding progress estimation problem" » "coder coding process estimation problem" (Expand search), "coder coding roughness estimation problem" (Expand search), "coder coding stress estimation problem" (Expand search), "coder coding progress restoration problem" (Expand search), "coder coding progress optimization problem" (Expand search), "coder coding progress education problem" (Expand search), "coder guiding progress estimation problem" (Expand search), "coder coding problems estimation problem" (Expand search), "coder breeding progress estimation problem" (Expand search), "modern coding progress estimation problem" (Expand search), "color coding progress estimation problem" (Expand search), "odor coding progress estimation 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 coding progress estimation problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding progress estimation problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coding progress estimation problem ) OR ( api python python python programming ))*.