Perhaps you should try some spelling variations:
"elements control algorithm" » "element controls algorithm" (Expand Search), "helminths control algorithm" (Expand Search), "element content algorithm" (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)
"complement c3 algorithms" » "complement _ algorithms" (Expand Search), "complement 5a algorithms" (Expand Search), "complement low algorithms" (Expand Search), "complement ml algorithms" (Expand Search), "complement rl 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: (((("complement c3 algorithms") OR ("elements control algorithm"))) OR ("level coding algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"complement c3 algorithms\") OR (\"elements control algorithm\"))) OR (\"level coding algorithm\"))".
• Removing quotes may allow a broader search: (((( complement c3 algorithms ) OR ( elements control algorithm ))) OR ( level coding algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("complement c3 algorithms") OR ("elements control algorithm"))) OR ("level coding algorithm"))*.