Perhaps you should try some spelling variations:
"fluent routing algorithm" » "fluent cosine algorithm" (Expand Search), "effluent routing algorithm" (Expand Search)
"element model algorithm" » "element mould algorithm" (Expand Search), "elements model algorithm" (Expand Search)
"element mesh algorithm" » "element deer algorithm" (Expand Search), "element search algorithm" (Expand Search), "elements mesh algorithm" (Expand Search)

Try widening your search to All Fields.

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