Perhaps you should try some spelling variations:
"post processing algorithm" » "post processing algorithms" (Expand Search), "text processing algorithm" (Expand Search)
"element other algorithms" » "element deer algorithm" (Expand Search), "elements other algorithms" (Expand Search)
"element three algorithms" » "elements three algorithms" (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 three algorithms") OR ("element other algorithms"))) OR ("post processing algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element three algorithms\") OR (\"element other algorithms\"))) OR (\"post processing algorithm\"))".
• Removing quotes may allow a broader search: (((( element three algorithms ) OR ( element other algorithms ))) OR ( post processing algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element three algorithms") OR ("element other algorithms"))) OR ("post processing algorithm"))*.