Perhaps you should try some spelling variations:
"coder coder graph embedding problem" » "coder coder graph emerging problem" (Expand search), "coder decoder graph embedding problem" (Expand search), "code code graph embedding problem" (Expand search), "decoder codec graph embedding problem" (Expand search), "coder codes graphs embedding problem" (Expand search), "coder over graph embedding problem" (Expand search), "coder order graph embedding 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder coder graph embedding problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder graph embedding problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder graph embedding problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder graph embedding problem") OR ("api python python python programming"))*.