Perhaps you should try some spelling variations:
"dung quang de snippets" » "dang quang de snippets", "luong quang de snippets", "dung luan de snippets", "dung quang le snippets", "dung quang d snippets", "dung quang do snippets"
"dan dung java snippets" » "dan dung va snippets", "van dung java snippets", "tin dung java snippets", "ap dung java 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 dung java snippets") or ("dung quang de snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan dung java snippets") OR ("dung quang de snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan dung java snippets ) or ( dung quang de snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan dung java snippets") or ("dung quang de snippets"))) or ("locating bug code snippets"))*.