Perhaps you should try some spelling variations:
"element component algorithm" » "latent component algorithm" (Expand Search), "elementary components algorithm" (Expand Search), "complement component 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)
"recent study algorithm" » "recent wsindy algorithm" (Expand Search), "recent td3 algorithm" (Expand Search), "recent seu algorithm" (Expand Search), "present study algorithm" (Expand Search), "recent studies algorithm" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("element component algorithm") OR ("recent study algorithm"))) OR ("level coding algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element component algorithm\") OR (\"recent study algorithm\"))) OR (\"level coding algorithm\"))".
• Removing quotes may allow a broader search: (((( element component algorithm ) OR ( recent study algorithm ))) OR ( level coding algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element component algorithm") OR ("recent study algorithm"))) OR ("level coding algorithm"))*.