Perhaps you should try some spelling variations:
"coder coder web caching problem" » "coder coder web teaching problem" (Expand search), "coder coder web matching problem" (Expand search), "coder coder web batching problem" (Expand search), "coder decoder web caching problem" (Expand search), "code code web caching problem" (Expand search), "decoder codec web caching problem" (Expand search), "coder coder web crawling problem" (Expand search), "coder modern web caching problem" (Expand search), "coder over web caching problem" (Expand search), "coder power web caching 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)

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 web caching problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder web caching problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder web caching problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder web caching problem") OR ("api python python python programming"))*.