Perhaps you should try some spelling variations:
"data modeling algorithm" » "data making algorithm" (Expand Search), "data modelling algorithm" (Expand Search), "data models algorithm" (Expand Search)
"fold using algorithms" » "fold pacing algorithms" (Expand Search), "fold nine algorithms" (Expand Search), "fold sorting algorithms" (Expand Search), "found using algorithms" (Expand Search), "solved using algorithms" (Expand Search), "pooled using algorithms" (Expand Search)
"element update algorithm" » "element pass algorithm" (Expand Search), "element data algorithms" (Expand Search), "element ipca algorithm" (Expand Search), "element 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: (((("data modeling algorithm") OR ("fold using algorithms"))) OR ("element update algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"data modeling algorithm\") OR (\"fold using algorithms\"))) OR (\"element update algorithm\"))".
• Removing quotes may allow a broader search: (((( data modeling algorithm ) OR ( fold using algorithms ))) OR ( element update algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("data modeling algorithm") OR ("fold using algorithms"))) OR ("element update algorithm"))*.