Perhaps you should try some spelling variations:
"coder error coding frequency estimation" » "coder error coding frequency distribution" (Expand search), "coder error coding frequency identification" (Expand search), "coder error coding frequency modulation" (Expand search), "coder error loading frequency estimation" (Expand search), "coder error scoring frequency estimation" (Expand search), "coder error fading frequency estimation" (Expand search), "coder error modeling frequency estimation" (Expand search), "coder vector coding frequency estimation" (Expand search), "coder color coding frequency estimation" (Expand search), "code error coding frequency estimation" (Expand search), "codes error coding frequency estimation" (Expand search), "model error coding frequency estimation" (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 error coding frequency estimation") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder error coding frequency estimation\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder error coding frequency estimation ) OR ( api python python python programming ))*.