Perhaps you should try some spelling variations:
"nhung gian dat snippets" » "nhung gia dat snippets", "nhung giai dat snippets", "khong gian dat snippets", "nhung gian dan snippets", "nhung gian dac snippets", "nhung giang day snippets", "nhung gian dat slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("nhung gian dat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhung gian dat snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung gian dat snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung gian dat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.