Perhaps you should try some spelling variations:
"coder coder _ embedded problem" » "coder coder _ embedding problem" (Expand search), "coder coder _ embedded program" (Expand search), "coder coder _ embedded mobile" (Expand search), "coder decoder _ embedded problem" (Expand search), "code code _ embedded problem" (Expand search), "decoder codec _ embedded 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 coder _ embedded problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder _ embedded problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder _ embedded problem") OR ("api python python python programming"))*.