Perhaps you should try some spelling variations:
"elements fusion algorithm" » "elements lasso algorithm" (Expand Search), "elements upon algorithm" (Expand Search)
"level coding algorithm" » "level cosine algorithm" (Expand Search), "level modeling algorithm" (Expand Search), "level finding algorithm" (Expand Search), "level according algorithm" (Expand Search), "level using algorithm" (Expand Search)
"elements cc3d algorithm" » "elements cscap algorithm" (Expand Search), "elements cnn algorithm" (Expand Search), "elements wold algorithm" (Expand Search), "elements crcy algorithm" (Expand Search), "elements ices algorithm" (Expand Search), "elements uce algorithm" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("elements fusion algorithm") OR ("elements cc3d algorithm"))) OR ("level coding algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"elements fusion algorithm\") OR (\"elements cc3d algorithm\"))) OR (\"level coding algorithm\"))".
• Removing quotes may allow a broader search: (((( elements fusion algorithm ) OR ( elements cc3d algorithm ))) OR ( level coding algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("elements fusion algorithm") OR ("elements cc3d algorithm"))) OR ("level coding algorithm"))*.