Perhaps you should try some spelling variations:
"element control algorithms" » "element control algorithm" (Expand Search), "element controls algorithms" (Expand Search), "element content algorithms" (Expand Search), "dependent control algorithms" (Expand Search)
"dft modeling algorithm" » "dft making algorithm" (Expand Search), "data modeling algorithm" (Expand Search), "afm modeling algorithm" (Expand Search), "path modeling algorithm" (Expand Search)
"element method algorithm" » "element network algorithm" (Expand Search), "element means algorithm" (Expand Search), "element mean 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 control algorithms") OR ("element method algorithm"))) OR ("dft modeling algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element control algorithms\") OR (\"element method algorithm\"))) OR (\"dft modeling algorithm\"))".
• Removing quotes may allow a broader search: (((( element control algorithms ) OR ( element method algorithm ))) OR ( dft modeling algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element control algorithms") OR ("element method algorithm"))) OR ("dft modeling algorithm"))*.