Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dan dieu cac snippets" » "dang dieu cac snippets", "doan dieu cac snippets", "da dieu cac snippets", "dan dieu can snippets", "dan hieu cac snippets", "dan dien cac 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: (((("dan dieu cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan dieu cac snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan dieu cac snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan dieu cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.