Perhaps you should try some spelling variations:
"coder coder and parametric estimation" » "coder coder and parameter estimation" (Expand search), "coder coder and parameters estimation" (Expand search), "coder coder and parametric optimization" (Expand search), "coder coder non parametric estimation" (Expand search), "coder coder _ parametric estimation" (Expand search), "coder decoder and parametric estimation" (Expand search), "code code and parametric estimation" (Expand search), "decoder codec and parametric estimation" (Expand search), "coder code and parametric estimation" (Expand search), "coder codes and parametric estimation" (Expand search), "coder poder and parametric 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), "manim 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 coder and parametric estimation") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder and parametric estimation\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder and parametric estimation ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder and parametric estimation") OR ("api python python python programming"))*.