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