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