Perhaps you should try some spelling variations:
"post modeling algorithm" » "post scheduling algorithm" (Expand Search), "most modeling algorithm" (Expand Search), "cost modeling algorithm" (Expand Search)
"dbscan clustering algorithm" » "data clustering algorithm" (Expand Search)
"element mesh algorithm" » "element deer algorithm" (Expand Search), "element search algorithm" (Expand Search), "elements mesh 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 mesh algorithm") OR ((("dbscan clustering algorithm") OR ("post modeling algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"element mesh algorithm\") OR (((\"dbscan clustering algorithm\") OR (\"post modeling algorithm\"))))".
• Removing quotes may allow a broader search: (( element mesh algorithm ) OR ((( dbscan clustering algorithm ) OR ( post modeling algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("element mesh algorithm") OR ((("dbscan clustering algorithm") OR ("post modeling algorithm"))))*.