Perhaps you should try some spelling variations:
"image processing algorithm" » "image modeling algorithm" (Expand Search), "image routing algorithm" (Expand Search), "image tracking algorithm" (Expand Search)
"relevant data algorithms" » "relevant art algorithms" (Expand Search), "relevant all algorithms" (Expand Search), "relevant both algorithms" (Expand Search)
"element ppo algorithm" » "element pso algorithm" (Expand Search), "element two algorithms" (Expand Search), "element _ algorithm" (Expand Search), "elements ppm algorithm" (Expand Search), "elements upon 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 ppo algorithm") OR ("relevant data algorithms"))) OR ("image processing algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element ppo algorithm\") OR (\"relevant data algorithms\"))) OR (\"image processing algorithm\"))".
• Removing quotes may allow a broader search: (((( element ppo algorithm ) OR ( relevant data algorithms ))) OR ( image processing algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element ppo algorithm") OR ("relevant data algorithms"))) OR ("image processing algorithm"))*.