Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung bao doi snippets" » "vung bao doi snippets", "dong bao doi snippets", "dung bai doi snippets", "dung bo doi snippets", "dung tao doi snippets", "dung trao doi 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 bao doi 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 bao doi snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung bao doi snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung bao doi snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.