Perhaps you should try some spelling variations:
"coder coder duration modulation problems" » "coder coder duration population problems" (Expand search), "coder coder duration formulation problems" (Expand search), "coder coder duration simulation problems" (Expand search), "coder power duration modulation problems" (Expand search), "coder order duration modulation problems" (Expand search), "coder longer duration modulation problems" (Expand search), "coder decoder duration modulation problems" (Expand search), "code code duration modulation problems" (Expand search), "decoder codec duration modulation problems" (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 coder duration modulation problems\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder duration modulation problems ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder duration modulation problems") OR ("api python python python programming"))*.