Perhaps you should try some spelling variations:
parameter optimisation » parameter optimization, parameter estimation
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
sach algorithm » search algorithm, graph algorithms, source algorithm
tinh sach » tinh cach, tinh mach, sinh sach
de tinh » den tinh, ve tinh, he tinh

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

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