Perhaps you should try some spelling variations:
"signal processing algorithm" » "signal routing algorithm" (Expand Search), "signal tracking algorithm" (Expand Search), "signal boosting algorithm" (Expand Search)
"based modeling algorithm" » "based making algorithm" (Expand Search), "based model algorithm" (Expand Search), "based models algorithm" (Expand Search)
"element data algorithm" » "element data algorithms" (Expand Search), "element update algorithm" (Expand Search), "element atlas algorithm" (Expand Search), "settlement data algorithm" (Expand Search), "relevant data algorithm" (Expand Search), "movement 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: (((("based modeling algorithm") OR ("signal processing algorithm"))) OR ("element data algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"based modeling algorithm\") OR (\"signal processing algorithm\"))) OR (\"element data algorithm\"))".
• Removing quotes may allow a broader search: (((( based modeling algorithm ) OR ( signal processing algorithm ))) OR ( element data algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("based modeling algorithm") OR ("signal processing algorithm"))) OR ("element data algorithm"))*.