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