Perhaps you should try some spelling variations:
dfllocation optimization » allocation optimization
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
predictor algorithm » predators algorithm, predation algorithm
a predictor » _ predictor, a prediction, _ prediction
modified a » modified _, modified df, modified adam

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( modified a predictor algorithm ) or ( modified dfllocation optimization algorithms ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( modified a predictor algorithm ) OR ( modified dfllocation optimization algorithms )).
• Adding a wildcard symbol may retrieve word variants: (( modified a predictor algorithm ) or ( modified dfllocation optimization algorithms ))*.