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