Perhaps you should try some spelling variations:
"modified changing estimation algorithmssss" » "modified changing estimation algorithm", "modified changing estimation algorithmsss", "modified changing optimization algorithmssss", "modified changing optimisation algorithmsss", "modified channel estimation algorithmssss", "modified charging station algorithmssss", "modified caging estimation algorithmssss"
"modified objective estimation algorithms" » "modified objective estimation algorithm", "modified objective optimization algorithms", "modified objective optimisation algorithm", "modified objective allocation algorithms"

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: (("modified objective estimation algorithms") or ("modified changing estimation algorithmssss"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified objective estimation algorithms") OR ("modified changing estimation algorithmssss")).
• Removing quotes may allow a broader search: (( modified objective estimation algorithms ) or ( modified changing estimation algorithmssss )).
• Adding a wildcard symbol may retrieve word variants: (("modified objective estimation algorithms") or ("modified changing estimation algorithmssss"))*.