Perhaps you should try some spelling variations:
"query tracking algorithms" » "query training algorithms" (Expand Search), "query learning algorithms" (Expand Search), "query making algorithm" (Expand Search), "term tracking algorithms" (Expand Search)
"level coding algorithm" » "level cosine algorithm" (Expand Search), "level modeling algorithm" (Expand Search), "level finding algorithm" (Expand Search), "level according algorithm" (Expand Search), "level using algorithm" (Expand Search)
"elements cscap algorithm" » "elements cc3d algorithm" (Expand Search), "elements ipca algorithm" (Expand Search), "elements custom algorithm" (Expand Search), "elements crcy 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: (((("query tracking algorithms") OR ("elements cscap algorithm"))) OR ("level coding algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"query tracking algorithms\") OR (\"elements cscap algorithm\"))) OR (\"level coding algorithm\"))".
• Removing quotes may allow a broader search: (((( query tracking algorithms ) OR ( elements cscap algorithm ))) OR ( level coding algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("query tracking algorithms") OR ("elements cscap algorithm"))) OR ("level coding algorithm"))*.