Perhaps you should try some spelling variations:
"client sampling algorithm" » "client scheduling algorithm" (Expand Search)
"elements custom algorithm" » "elements control algorithm" (Expand Search), "elements auction algorithm" (Expand Search), "elements cosine algorithm" (Expand Search)
"element data algorithm" » "element jaya algorithm" (Expand Search), "element deer 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: (((("client sampling algorithm") OR ("element data algorithm"))) OR ("elements custom algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"client sampling algorithm\") OR (\"element data algorithm\"))) OR (\"elements custom algorithm\"))".
• Removing quotes may allow a broader search: (((( client sampling algorithm ) OR ( element data algorithm ))) OR ( elements custom algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("client sampling algorithm") OR ("element data algorithm"))) OR ("elements custom algorithm"))*.