Perhaps you should try some spelling variations:
"case modeling algorithm" » "case scheduling algorithm" (Expand Search), "based modeling algorithm" (Expand Search)
"joined using algorithm" » "joined cosine algorithm" (Expand Search), "brines using algorithm" (Expand Search)
"element jaya algorithm" » "elements jaya algorithm" (Expand Search), "element maya algorithm" (Expand Search), "element aya algorithm" (Expand Search), "element jana algorithm" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("case modeling algorithm") OR ("joined using algorithm"))) OR ("element jaya algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"case modeling algorithm\") OR (\"joined using algorithm\"))) OR (\"element jaya algorithm\"))".
• Removing quotes may allow a broader search: (((( case modeling algorithm ) OR ( joined using algorithm ))) OR ( element jaya algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("case modeling algorithm") OR ("joined using algorithm"))) OR ("element jaya algorithm"))*.