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