Perhaps you should try some spelling variations:
"coder code of approximation error" » "coder code of approximation theory" (Expand search), "coder code of approximation method" (Expand search), "coder code of approximation of" (Expand search), "coder code an approximation error" (Expand search), "coder code of approximate error" (Expand search), "code code of approximation error" (Expand search), "modern code of approximation error" (Expand search), "color code of approximation error" (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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder code of approximation error\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder code of approximation error ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder code of approximation error") OR ("api python python python programming"))*.