Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung bai co snippets" » "dung tai co snippets", "dung sai co snippets", "dung hai co snippets", "dung bai con snippets", "dung mai co snippets", "dung bai ca 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 bai co 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 bai co snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung bai co snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung bai co snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.