Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
market optimization » game optimization, parameter optimization, market capitalization
source algorithm » our algorithm, search algorithm
modified market » modified male
using source » using force, using morse
code » core

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

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