Perhaps you should try some spelling variations:
"based models algorithm" » "based mould algorithm" (Expand Search), "based deer algorithm" (Expand Search), "based modeling algorithm" (Expand Search)
"pooled using algorithm" » "pooled cosine algorithm" (Expand Search), "problem using algorithm" (Expand Search), "tool using algorithm" (Expand Search), "tools using algorithm" (Expand Search)
"element data algorithm" » "element jaya algorithm" (Expand Search), "element deer algorithm" (Expand Search), "elements 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: (((("based models algorithm") OR ("pooled using algorithm"))) OR ("element data algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"based models algorithm\") OR (\"pooled using algorithm\"))) OR (\"element data algorithm\"))".
• Removing quotes may allow a broader search: (((( based models algorithm ) OR ( pooled using algorithm ))) OR ( element data algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("based models algorithm") OR ("pooled using algorithm"))) OR ("element data algorithm"))*.