Perhaps you should try some spelling variations:
"coder coder coupling and problem" » "coder mode coupling and problem" (Expand search), "coder model coupling and problem" (Expand search), "coder core coupling and problem" (Expand search), "coder coder coupling in problem" (Expand search), "coder coder coupling of problem" (Expand search), "coder decoder coupling and problem" (Expand search), "code code coupling and problem" (Expand search), "decoder codec coupling and problem" (Expand search)
"api pythons python python programming" » "api pitons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pythons piton python programming" (Expand search), "api pythons pitons python programming" (Expand search), "api pythons pytm python programming" (Expand search), "api 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 coupling and problem") OR ("api pythons python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder coupling and problem\") OR (\"api pythons python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder coupling and problem ) OR ( api pythons python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder coupling and problem") OR ("api pythons python python programming"))*.