Perhaps you should try some spelling variations:
"element control algorithms" » "element control algorithm" (Expand Search), "tolerant control algorithms" (Expand Search)
"level coding algorithm" » "level cosine algorithm" (Expand Search), "level colony algorithm" (Expand Search), "level scheduling algorithm" (Expand Search)
"complement ii algorithm" » "complement rd algorithm" (Expand Search), "complement _ algorithms" (Expand Search), "implement ii algorithm" (Expand Search), "complementary ii 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: (((("complement ii algorithm") OR ("element control algorithms"))) OR ("level coding algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"complement ii algorithm\") OR (\"element control algorithms\"))) OR (\"level coding algorithm\"))".
• Removing quotes may allow a broader search: (((( complement ii algorithm ) OR ( element control algorithms ))) OR ( level coding algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("complement ii algorithm") OR ("element control algorithms"))) OR ("level coding algorithm"))*.