Perhaps you should try some spelling variations:
"data processing algorithm" » "data modeling algorithm" (Expand Search), "data routing algorithm" (Expand Search), "data tracking algorithm" (Expand Search), "image processing algorithm" (Expand Search)
"system using algorithms" » "system pacing algorithms" (Expand Search), "system nine algorithms" (Expand Search), "system sorting algorithms" (Expand Search)
"movement data algorithm" » "movement data algorithms" (Expand Search), "movement update algorithm" (Expand Search), "movement atlas 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: (((("data processing algorithm") OR ("system using algorithms"))) OR ("movement data algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"data processing algorithm\") OR (\"system using algorithms\"))) OR (\"movement data algorithm\"))".
• Removing quotes may allow a broader search: (((( data processing algorithm ) OR ( system using algorithms ))) OR ( movement data algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("data processing algorithm") OR ("system using algorithms"))) OR ("movement data algorithm"))*.