Perhaps you should try some spelling variations:
"data modeling algorithm" » "data making algorithm" (Expand Search), "data modelling algorithm" (Expand Search), "data models algorithm" (Expand Search)
"data routing algorithm" » "data finding algorithm" (Expand Search), "data making algorithm" (Expand Search), "data clustering algorithm" (Expand Search), "data groupings algorithm" (Expand Search), "data relating algorithm" (Expand Search), "data using algorithm" (Expand Search)
"element study algorithm" » "element wsindy algorithm" (Expand Search), "element td3 algorithm" (Expand Search), "element seu algorithm" (Expand Search), "relevant study algorithm" (Expand Search), "present study algorithm" (Expand Search), "recent study algorithm" (Expand Search)

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