Perhaps you should try some spelling variations:
"data routing algorithms" » "data routing algorithm" (Expand Search), "data sorting algorithms" (Expand Search), "data using algorithms" (Expand Search), "data groupings algorithms" (Expand Search), "data relating algorithms" (Expand Search)
"solved using algorithm" » "solved using algorithms" (Expand Search), "solved routing algorithm" (Expand Search), "solved fusion algorithm" (Expand Search)
"element based algorithm" » "engagement based algorithm" (Expand Search)

Try widening your search to All Fields.

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