Perhaps you should try some spelling variations:
"data tracking algorithms" » "data training algorithms" (Expand Search), "data learning algorithms" (Expand Search), "data making algorithm" (Expand Search), "path tracking algorithms" (Expand Search), "data backing algorithms" (Expand Search), "uav tracking algorithms" (Expand Search)
"post modeling algorithm" » "post making algorithm" (Expand Search), "best modeling algorithm" (Expand Search), "forest modeling algorithm" (Expand Search), "joint modeling 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: (((("post modeling algorithm") OR ("data tracking algorithms"))) OR ("element data algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"post modeling algorithm\") OR (\"data tracking algorithms\"))) OR (\"element data algorithm\"))".
• Removing quotes may allow a broader search: (((( post modeling algorithm ) OR ( data tracking algorithms ))) OR ( element data algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("post modeling algorithm") OR ("data tracking algorithms"))) OR ("element data algorithm"))*.