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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("4 array pso algorithm") OR ("_ methods 2.1 algorithms"))) OR ("1 general path algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"4 array pso algorithm\") OR (\"_ methods 2.1 algorithms\"))) OR (\"1 general path algorithm\"))".
• Removing quotes may allow a broader search: (((( 4 array pso algorithm ) OR ( _ methods 2.1 algorithms ))) OR ( 1 general path algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("4 array pso algorithm") OR ("_ methods 2.1 algorithms"))) OR ("1 general path algorithm"))*.