Perhaps you should try some spelling variations:
"gmm clustering algorithm" » "_ clustering algorithm" (Expand Search)
"movement data algorithm" » "movement data algorithms" (Expand Search), "movement update algorithm" (Expand Search), "movement atlas algorithm" (Expand Search)
"data finding algorithm" » "path finding algorithm" (Expand Search), "data fitting algorithm" (Expand Search), "case finding algorithm" (Expand Search)

Try widening your search to All Fields.

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