Perhaps you should try some spelling variations:
"ban nuoi code snippets" » "ban nuoi con snippets", "ban nuoi de snippets", "ban nguoi code snippets", "ban noi code snippets", "dan nuoi code snippets", "ban nuoi code slippers"
"hang java java snippets" » "hang va java snippets", "hang java java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("ban nuoi code snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban nuoi code snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban nuoi code snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban nuoi code snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.