Perhaps you should try some spelling variations:
"coder density optimization algorithm based" » "coder sensory optimization algorithm based" (Expand search), "coder website optimization algorithm based" (Expand search), "coder energy optimization algorithm based" (Expand search), "coder density optimization algorithm and" (Expand search), "cover density optimization algorithm based" (Expand search), "powder density optimization algorithm based" (Expand search), "power density optimization algorithm based" (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 density optimization algorithm based") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder density optimization algorithm based\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder density optimization algorithm based ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder density optimization algorithm based") OR ("api python python python programming"))*.