Perhaps you should try some spelling variations:
"implementing mean algorithm" » "implementing iot algorithm" (Expand Search), "implementing deer algorithm" (Expand Search), "implementing search algorithm" (Expand Search)
"level coding algorithm" » "level cosine algorithm" (Expand Search), "level colony algorithm" (Expand Search), "level scheduling algorithm" (Expand Search)
"element ml algorithms" » "element _ algorithms" (Expand Search), "element rd algorithm" (Expand Search), "elements ml algorithms" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("implementing mean algorithm") OR ("element ml algorithms"))) OR ("level coding algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"implementing mean algorithm\") OR (\"element ml algorithms\"))) OR (\"level coding algorithm\"))".
• Removing quotes may allow a broader search: (((( implementing mean algorithm ) OR ( element ml algorithms ))) OR ( level coding algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("implementing mean algorithm") OR ("element ml algorithms"))) OR ("level coding algorithm"))*.