Perhaps you should try some spelling variations:
"coder coding firefly algorithm teaching" » "coder coding firefly algorithms teaching" (Expand search), "coder coding firefly algorithmic teaching" (Expand search), "coder coding firefly algorithm learning" (Expand search), "coder using firefly algorithm teaching" (Expand search), "modern coding firefly algorithm teaching" (Expand search), "color coding firefly algorithm teaching" (Expand search), "odor coding firefly algorithm teaching" (Expand search)
"api python python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pitons python python programming" (Expand search), "rpa python 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 teaching\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coding firefly algorithm teaching ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coding firefly algorithm teaching") OR ("api python python python programming"))*.