Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung dan ve snippets" » "dung dat ve snippets", "dung san ve snippets", "tung dan ve snippets", "dung ban ve snippets", "dung dan va snippets", "dung dan viet 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: (((("dung dan ve snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung dan ve snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung dan ve snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung dan ve snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.