Perhaps you should try some spelling variations:
"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 pso algorithm" » "complement past algorithm" (Expand Search), "complement _ algorithm" (Expand Search), "complement low algorithm" (Expand Search), "complement lasso algorithm" (Expand Search), "complement ii algorithm" (Expand Search)
"elements ppm algorithm" » "elements ppo algorithm" (Expand Search), "elements em algorithm" (Expand Search), "elements svm algorithm" (Expand Search), "elements _ algorithm" (Expand Search), "elements b algorithm" (Expand Search), "elements fe 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: (((("elements ppm algorithm") OR ("complement pso algorithm"))) OR ("level coding algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"elements ppm algorithm\") OR (\"complement pso algorithm\"))) OR (\"level coding algorithm\"))".
• Removing quotes may allow a broader search: (((( elements ppm algorithm ) OR ( complement pso algorithm ))) OR ( level coding algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("elements ppm algorithm") OR ("complement pso algorithm"))) OR ("level coding algorithm"))*.