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"
"dong thon java snippets" » "dong thong java snippets", "nong thon java snippets", "dong thuong java snippets", "dong think 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: (((("dong thon 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: (((("dong thon java snippets") OR ("dung quang de snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong thon java snippets ) or ( dung quang de snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong thon java snippets") or ("dung quang de snippets"))) or ("locating bug code snippets"))*.