Perhaps you should try some spelling variations:
"primary arm driven optimization algorithm" » "primary arm level optimization algorithm" (Expand Search), "primary arm spider optimization algorithm" (Expand Search), "primary farm driven optimization algorithm" (Expand Search), "primary harm driven optimization algorithm" (Expand Search)
"binary same process optimization algorithm" » "binary water process optimization algorithm" (Expand Search), "binary due process optimization algorithm" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("primary arm driven optimization algorithm") OR ("binary same process optimization algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"primary arm driven optimization algorithm\") OR (\"binary same process optimization algorithm\"))".
• Removing quotes may allow a broader search: (( primary arm driven optimization algorithm ) OR ( binary same process optimization algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("primary arm driven optimization algorithm") OR ("binary same process optimization algorithm"))*.