Perhaps you should try some spelling variations:
"sphere optimization algorithmssss" » "sphere optimization algorithms", "sphere optimisation algorithm", "sphere optimization algorithmsssss", "sphere optimisation algorithmssss", "sphere estimation algorithmssss", "stage optimization algorithmssss", "response optimization algorithmssss"
"parameters optimization algorithm" » "parameter optimization algorithm", "parameter estimation algorithm", "parameters optimization algorithms", "parameters optimisation algorithm", "parameters estimation algorithm"

You may be able to get more results by adjusting your search query.

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