Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung dat hoan snippets" » "dung va hoan snippets", "dung tai hoan snippets", "dung dao hoan snippets", "dung xuat hoan snippets", "dung van hoan 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 dat hoan 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 dat hoan snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung dat hoan snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung dat hoan snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.