Perhaps you should try some spelling variations:
"dung dan chen snippets" » "dung dan code snippets", "dung dat chen snippets", "dung san chen snippets", "tung dan chen snippets", "dung dan chan snippets", "dung yan chen snippets", "dung can chien snippets"
"locating bug core snippets" » "locating bug code snippets"
"dung java java snippets" » "dung va java snippets"

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 chen snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung dan chen snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung dan chen snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung dan chen snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.