Perhaps you should try some spelling variations:
"flow modeling algorithm" » "flow making algorithm" (Expand Search), "low modeling algorithm" (Expand Search)
"data sorting algorithms" » "data routing algorithm" (Expand Search), "data learning algorithms" (Expand Search), "data working algorithms" (Expand Search), "data supporting algorithms" (Expand Search), "data settings algorithms" (Expand Search)
"element data algorithm" » "element data algorithms" (Expand Search), "element update algorithm" (Expand Search), "element atlas algorithm" (Expand Search), "settlement data algorithm" (Expand Search), "relevant data algorithm" (Expand Search), "movement data algorithm" (Expand Search)

Try widening your search to All Fields.

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