Perhaps you should try some spelling variations:
"coder refraction errors detection problem" » "coder refractive errors detection problem" (Expand search), "coder refractive error detection problem" (Expand search), "coder prediction errors detection problem" (Expand search), "coder refraction errors selection problem" (Expand search), "coder refraction errors detection program" (Expand search), "coder refraction errors demarcation problem" (Expand search), "index refraction errors detection problem" (Expand search), "corneal refraction errors detection problem" (Expand search), "ocular refraction errors detection problem" (Expand search), "coder refraction error detection problem" (Expand search), "coder refraction errors prevention problem" (Expand search), "coder refraction sers detection 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 refraction errors detection problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder refraction errors detection problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder refraction errors detection problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder refraction errors detection problem") OR ("api python python python programming"))*.