Perhaps you should try some spelling variations:
"joint modeling algorithm" » "joint making algorithm" (Expand Search), "joint model algorithm" (Expand Search)
"fragment based algorithm" » "agent based algorithm" (Expand Search)
"settlement data algorithm" » "settlement data algorithms" (Expand Search), "settlement update algorithm" (Expand Search), "settlement atlas 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 ((("fragment based algorithm") OR ("settlement data algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"joint modeling algorithm\") OR (((\"fragment based algorithm\") OR (\"settlement data algorithm\"))))".
• Removing quotes may allow a broader search: (( joint modeling algorithm ) OR ((( fragment based algorithm ) OR ( settlement data algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("joint modeling algorithm") OR ((("fragment based algorithm") OR ("settlement data algorithm"))))*.