Perhaps you should try some spelling variations:
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
parameter optimisation » parameter optimization, parameter estimation
source algorithm » our algorithm, search algorithm
code tinh » cong tinh, de tinh
che tinh » che kinh, he tinh, cha tinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( ((code tinh) OR (che tinh)) source algorithm ) or ( modified parameter optimisation algorithm ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((code tinh) OR (che tinh)) source algorithm ) OR ( modified parameter optimisation algorithm )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((code tinh) OR (che tinh)) source algorithm ) or ( modified parameter optimisation algorithm ))".
• Adding a wildcard symbol may retrieve word variants: (( ((code tinh) OR (che tinh)) source algorithm ) or ( modified parameter optimisation algorithm ))*.