Perhaps you should try some spelling variations:
"coder coding using users perceptions" » "coder coding using users perception" (Expand search), "coder coding using user perception" (Expand search), "coder coding using user's perception" (Expand search), "modern coding using users perceptions" (Expand search), "color coding using users perceptions" (Expand search), "odor coding using users perceptions" (Expand search), "coder loading using users perceptions" (Expand search), "coder modeling using users perceptions" (Expand search), "coder drying using users perceptions" (Expand search), "coder coding using user's perceptions" (Expand search), "coder coding using user perceptions" (Expand search), "coder coding using sers perceptions" (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 using users perceptions\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coding using users perceptions ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coding using users perceptions") OR ("api python python python programming"))*.