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