Perhaps you should try some spelling variations:
"spatial clustering algorithm" » "data clustering algorithm" (Expand Search)
"based motion algorithm" » "based auction algorithm" (Expand Search), "based control algorithm" (Expand Search), "based colony algorithm" (Expand Search), "based method algorithm" (Expand Search)
"relevant data algorithm" » "relevant jaya algorithm" (Expand Search), "relevant deer 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: (("relevant data algorithm") OR ((("spatial clustering algorithm") OR ("based motion algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"relevant data algorithm\") OR (((\"spatial clustering algorithm\") OR (\"based motion algorithm\"))))".
• Removing quotes may allow a broader search: (( relevant data algorithm ) OR ((( spatial clustering algorithm ) OR ( based motion algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("relevant data algorithm") OR ((("spatial clustering algorithm") OR ("based motion algorithm"))))*.