Perhaps you should try some spelling variations:
"coder coding firefly algorithm using" » "coder coding firefly algorithm in" (Expand search), "coder using firefly algorithm using" (Expand search), "modern coding firefly algorithm using" (Expand search), "color coding firefly algorithm using" (Expand search), "odor coding firefly algorithm using" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ pitons python python programming" (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding firefly algorithm using\") OR (\"_ python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coding firefly algorithm using ) OR ( _ python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coding firefly algorithm using") OR ("_ python python python programming"))*.