Perhaps you should try some spelling variations:
"drone routing algorithm" » "drone modeling algorithm" (Expand Search), "drone finding algorithm" (Expand Search), "drone making algorithm" (Expand Search), "prone routing algorithm" (Expand Search)
"element cscap algorithm" » "element cc3d algorithm" (Expand Search), "element ipca algorithm" (Expand Search), "element custom 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: (((("element data algorithm") OR ("element cscap algorithm"))) OR ("drone routing algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element data algorithm\") OR (\"element cscap algorithm\"))) OR (\"drone routing algorithm\"))".
• Removing quotes may allow a broader search: (((( element data algorithm ) OR ( element cscap algorithm ))) OR ( drone routing algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element data algorithm") OR ("element cscap algorithm"))) OR ("drone routing algorithm"))*.