Perhaps you should try some spelling variations:
"coding decoding python unit problem" » "encoding decoding python unit problem" (Expand search), "reading decoding python unit problem" (Expand search), "joint decoding python unit problem" (Expand search), "coding decoding method unit problem" (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: "((\"coding decoding python unit problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coding decoding python unit problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coding decoding python unit problem") OR ("api python python python programming"))*.