Perhaps you should try some spelling variations:
"modified allocation optimization algorithms" » "modified allocation optimisation algorithm", "modified allocation estimation algorithms", "modified allocation estimation algorithm", "modified location optimization algorithms"
"active learning method algorithm" » "active learning mom algorithm", "machine learning method algorithm", "active learning methods algorithm", "active graining methods algorithm", "active learning emotion algorithm"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("active learning method algorithm") OR ("modified allocation optimization algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"active learning method algorithm\") OR (\"modified allocation optimization algorithms\"))".
• Removing quotes may allow a broader search: (( active learning method algorithm ) OR ( modified allocation optimization algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("active learning method algorithm") OR ("modified allocation optimization algorithms"))*.