Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat tieu den snippets" » "day tieu den snippets", "dat hieu den snippets", "dat yeu den snippets", "dat tieu dien snippets", "dat lieu den snippets", "dat lieu dien 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: (((("dat tieu 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: (((("dat tieu den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat tieu den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat tieu den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.