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 fitting algorithm" » "data mining algorithm" (Expand Search), "data hiding algorithm" (Expand Search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"elements method algorithm\") OR (((\"data fitting algorithm\") OR (\"post processing algorithm\"))))~".
• Removing quotes may allow a broader search: (( elements method algorithm ) OR ((( data fitting algorithm ) OR ( post processing algorithm ))))~.
• Adding a wildcard symbol may retrieve word variants: (("elements method algorithm") OR ((("data fitting algorithm") OR ("post processing algorithm"))))*.