Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung lao can snippets" » "dung lam can snippets", "dung bao can snippets", "dung lai can snippets", "dung lao cai snippets", "dung lao ban snippets", "dung lao tan 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 lao can 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 lao can snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung lao can snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung lao can snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.