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