Perhaps you should try some spelling variations:
"ann modeling algorithm" » "ann making algorithm" (Expand Search), "a modeling algorithm" (Expand Search), "afm modeling algorithm" (Expand Search), "data modeling algorithm" (Expand Search)
"element data algorithms" » "element art algorithms" (Expand Search), "element all algorithms" (Expand Search), "element both algorithms" (Expand Search), "settlement data algorithms" (Expand Search), "relevant data algorithms" (Expand Search), "movement data algorithms" (Expand Search)
"fragment based algorithm" » "agent 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: (("ann modeling algorithm") OR ((("fragment based algorithm") OR ("element data algorithms"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"ann modeling algorithm\") OR (((\"fragment based algorithm\") OR (\"element data algorithms\"))))".
• Removing quotes may allow a broader search: (( ann modeling algorithm ) OR ((( fragment based algorithm ) OR ( element data algorithms )))).
• Adding a wildcard symbol may retrieve word variants: (("ann modeling algorithm") OR ((("fragment based algorithm") OR ("element data algorithms"))))*.