Perhaps you should try some spelling variations:
"modified objective optimisation algorithm" » "modified objective optimization algorithm", "modified multiobjective optimization algorithm", "modified objective optimization algorithms", "modified objective estimation algorithm"
"modified pulsed estimation algorithms" » "modified pulsed estimation algorithm", "modified pulsed optimization algorithms", "modified pulsed approximation algorithms", "modified pulses estimation algorithms", "modified pose estimation algorithms"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified pulsed estimation algorithms") or ("modified objective optimisation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified pulsed estimation algorithms") OR ("modified objective optimisation algorithm")).
• Removing quotes may allow a broader search: (( modified pulsed estimation algorithms ) or ( modified objective optimisation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified pulsed estimation algorithms") or ("modified objective optimisation algorithm"))*.