Perhaps you should try some spelling variations:
"don optimization algorithmss" » "don optimization algorithms", "don optimisation algorithm", "don estimation algorithms", "don optimization algorithmsss", "don optimisation algorithmss", "don estimation algorithmss", "qoe optimization algorithmss", "_ optimization algorithmss", "game optimization algorithmss"
"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: (("don optimization algorithmss") or ("parameters optimization algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("don optimization algorithmss") OR ("parameters optimization algorithm")).
• Removing quotes may allow a broader search: (( don optimization algorithmss ) or ( parameters optimization algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("don optimization algorithmss") or ("parameters optimization algorithm"))*.