Perhaps you should try some spelling variations:
"odor coding using three perceptions" » "odor coding using threat perceptions" (Expand search), "odor coding using the perceptions" (Expand search), "odor coding using career perceptions" (Expand search), "odor modeling using three perceptions" (Expand search), "odor drying using three perceptions" (Expand search), "color coding using three perceptions" (Expand search), "odor binding using three 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), "manim 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: "((\"odor coding using three perceptions\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( odor coding using three perceptions ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("odor coding using three perceptions") OR ("api python python python programming"))*.