Perhaps you should try some spelling variations:
"a optimisation algorithm" » "a optimization algorithms", "a estimation algorithm", "_ optimisation algorithm", "_ optimization algorithm", "game optimization algorithm"
"jose estimation algorithms" » "jose estimation algorithm", "jose optimization algorithms", "jose approximation algorithms", "pose estimation algorithms", "risk estimation algorithms", "cover estimations algorithms"
"a simulation algorithm" » "a estimation algorithm", "a solution algorithm", "a evolution algorithm", "_ simulation algorithm"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("jose estimation algorithms") or ((("a simulation algorithm") OR ("a optimisation algorithm"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("jose estimation algorithms") OR ((("a simulation algorithm") OR ("a optimisation algorithm")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"jose estimation algorithms\") or (((\"a simulation algorithm\") OR (\"a optimisation algorithm\"))))".
• Removing quotes may allow a broader search: (( jose estimation algorithms ) or ((( a simulation algorithm ) OR ( a optimisation algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("jose estimation algorithms") or ((("a simulation algorithm") OR ("a optimisation algorithm"))))*.