Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
solutions algorithm » solution algorithm, evolution algorithm, evolutionary algorithm
adaptive solutions » positive solutions
modified adaptive » modified passive
df optimization » _ optimization, qoe optimization, _ optimisation
modified df » modified _, modified adam, modified bi1

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( modified adaptive solutions algorithm ) OR ( modified df optimization algorithms ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( modified adaptive solutions algorithm ) OR ( modified df optimization algorithms ))*".