Perhaps you should try some spelling variations:
"modified location estimation algorithms" » "modified location estimation algorithm", "modified location optimization algorithms", "modified location optimisation algorithm", "modified motion estimation algorithms", "modified carbon estimation algorithms"
"model using methods algorithm" » "model nursing methods algorithm", "model making methods algorithm", "model counting methods algorithm", "code using methods algorithm", "models nursing methods algorithm", "powder using methods algorithm"

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

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