Perhaps you should try some spelling variations:
"spatial modeling algorithm" » "spatial making algorithm" (Expand Search)
"element ipca algorithm" » "element wgcna algorithm" (Expand Search), "element cscap algorithm" (Expand Search), "element ii algorithm" (Expand Search), "element data algorithm" (Expand Search)
"element based algorithm" » "engagement based algorithm" (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

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