Perhaps you should try some spelling variations:
"query processing algorithm" » "query processing algorithms" (Expand Search), "text processing algorithm" (Expand Search)
"elements cscap algorithm" » "elements cosine algorithm" (Expand Search)
"elements fe algorithms" » "elements _ algorithms" (Expand Search), "elements rd algorithm" (Expand Search), "elementi per algorithms" (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 fe algorithms") OR ("elements cscap algorithm"))) OR ("query processing algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"elements fe algorithms\") OR (\"elements cscap algorithm\"))) OR (\"query processing algorithm\"))".
• Removing quotes may allow a broader search: (((( elements fe algorithms ) OR ( elements cscap algorithm ))) OR ( query processing algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("elements fe algorithms") OR ("elements cscap algorithm"))) OR ("query processing algorithm"))*.