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