Perhaps you should try some spelling variations:
"image modeling algorithm" » "image making algorithm" (Expand Search), "age modeling algorithm" (Expand Search), "climate modeling algorithm" (Expand Search), "case modeling algorithm" (Expand Search)
"elements method algorithms" » "elements two algorithms" (Expand Search), "elements both algorithms" (Expand Search), "elements other algorithms" (Expand Search), "element method algorithms" (Expand Search)
"present data algorithms" » "present art algorithms" (Expand Search), "present all algorithms" (Expand Search), "present both algorithms" (Expand Search), "presence data algorithms" (Expand Search), "present day algorithms" (Expand Search), "recent data algorithms" (Expand Search)

Try widening your search to All Fields.

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