Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong da lua slippers" » "cong dan lua slippers", "cong dac lua slippers", "cong dau lua slippers", "cong dap lua slippers", "cong ca lua slippers", "cong da cua slippers", "cong da lua slippery", "cong da lua grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("cong da lua slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong da lua slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong da lua slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong da lua slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.