Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"tranh ban che snippets" » "trinh ban che snippets", "tranh hang che snippets", "tranh luan che snippets", "tranh ban cheo snippets", "tranh bang che snippets", "tranh bao che 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 java java snippets") or ("tranh ban che snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("tranh ban che snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( tranh ban che snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("tranh ban che snippets"))) or ("locating bug code snippets"))*.