Perhaps you should try some spelling variations:
parameters optimization » parameter optimization, parameter estimation
optimization algorithm » optimization algorithms, optimisation algorithm, estimation algorithm
khac algorithm » adam algorithm, search algorithm
code pham » che pham, cong pham
pham khac » phap khac, pham khanh, pham khoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( code pham khac algorithm ) or ( modified parameters optimization algorithm ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( code pham khac algorithm ) OR ( modified parameters optimization algorithm )).
• Adding a wildcard symbol may retrieve word variants: (( code pham khac algorithm ) or ( modified parameters optimization algorithm ))*.