Perhaps you should try some spelling variations:
"coder odor coding and appearance" » "coder odor coding the appearance" (Expand search), "coder color coding and appearance" (Expand search), "coder error coding and appearance" (Expand search), "coder odor binding and appearance" (Expand search), "odor odor coding and appearance" (Expand search), "coder odor coding rna appearance" (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 odor coding and appearance\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder odor coding and appearance ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder odor coding and appearance") OR ("api python python python programming"))*.