Perhaps you should try some spelling variations:
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
market estimation » market optimization, parameter estimation
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.

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