Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ben vung de snippets" » "ben dung de snippets", "ben vang de snippets", "ben vung re snippets", "bien vung de snippets", "been vung de snippets", "benh vung de 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: (((("ben vung de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ben vung de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ben vung de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ben vung de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.