Perhaps you should try some spelling variations:
parameter optimisation » parameter optimization, parameter estimation
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
college graining » colregs training, coarse graining
graining methods » learning methods, learning method, making methods

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( college graining methods algorithm ) OR ( modified parameter optimisation algorithm ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( college graining methods algorithm ) OR ( modified parameter optimisation algorithm ))".
• Adding a wildcard symbol may retrieve word variants: (( college graining methods algorithm ) OR ( modified parameter optimisation algorithm ))*.