Perhaps you should try some spelling variations:
"space modeling algorithm" » "space scheduling algorithm" (Expand Search), "spatial modeling algorithm" (Expand Search)
"dbscan clustering algorithm" » "data clustering 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.

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

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