Perhaps you should try some spelling variations:
"elements tested algorithms" » "elements based algorithms" (Expand Search), "elements best algorithms" (Expand Search), "elements based algorithm" (Expand Search), "elements tended algorithms" (Expand Search), "elements related algorithms" (Expand Search)
"effects using algorithm" » "effects using algorithms" (Expand Search), "effects routing algorithm" (Expand Search), "effects fusion algorithm" (Expand Search), "events using algorithm" (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: (((("element data algorithm") OR ("elements tested algorithms"))) OR ("effects using algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element data algorithm\") OR (\"elements tested algorithms\"))) OR (\"effects using algorithm\"))".
• Removing quotes may allow a broader search: (((( element data algorithm ) OR ( elements tested algorithms ))) OR ( effects using algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element data algorithm") OR ("elements tested algorithms"))) OR ("effects using algorithm"))*.