Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang dao den snippets" » "dong dao den snippets", "dang do den snippets", "dan dao den snippets", "dang dao dan snippets", "dang dan den snippets", "dang day den snippets"
"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: (((("dang dao den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang dao den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang dao den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang dao den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.