Perhaps you should try some spelling variations:
"coder decoder using complex problem" » "coder decoder using complex problems" (Expand search), "encoder decoder using complex problem" (Expand search), "coder disorder using complex problem" (Expand search), "coder decoding using complex problem" (Expand search), "coder cover using complex problem" (Expand search), "coder decoder housing complex problem" (Expand search), "coder decoder using computer 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)

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 decoder using complex problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder decoder using complex problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder decoder using complex problem") OR ("api python python python programming"))*.