Perhaps you should try some spelling variations:
"post processingnb algorithm" » "post processing algorithm" (Expand Search), "list processing algorithm" (Expand Search)
"elements tree algorithms" » "elements three algorithms" (Expand Search), "elements art algorithms" (Expand Search), "elements two algorithms" (Expand Search), "elements ree algorithms" (Expand Search), "element ree algorithms" (Expand Search), "elements res algorithms" (Expand Search)
"element g algorithm" » "element _ algorithm" (Expand Search), "element b algorithm" (Expand Search), "element gnb algorithm" (Expand Search), "elements _ 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: (("post processingnb algorithm") OR ((("elements tree algorithms") OR ("element g algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"post processingnb algorithm\") OR (((\"elements tree algorithms\") OR (\"element g algorithm\"))))".
• Removing quotes may allow a broader search: (( post processingnb algorithm ) OR ((( elements tree algorithms ) OR ( element g algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("post processingnb algorithm") OR ((("elements tree algorithms") OR ("element g algorithm"))))*.