Perhaps you should try some spelling variations:
"data processing algorithm" » "data routing algorithm" (Expand Search), "data tracking algorithm" (Expand Search), "data boosting algorithm" (Expand Search), "image processing algorithm" (Expand Search)
"system modeling algorithm" » "system making algorithm" (Expand Search), "system model algorithm" (Expand Search), "system models algorithm" (Expand Search)
"element abs algorithm" » "element anbs algorithm" (Expand Search), "element pass algorithm" (Expand Search), "element b algorithm" (Expand Search), "element fbe algorithm" (Expand Search), "element data algorithm" (Expand Search), "element 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 abs algorithm") OR ((("data processing algorithm") OR ("system modeling algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"element abs algorithm\") OR (((\"data processing algorithm\") OR (\"system modeling algorithm\"))))".
• Removing quotes may allow a broader search: (( element abs algorithm ) OR ((( data processing algorithm ) OR ( system modeling algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("element abs algorithm") OR ((("data processing algorithm") OR ("system modeling algorithm"))))*.