Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"cac luong cho snippets" » "cat luong cho snippets", "cac tuong cho snippets", "cac duong cho snippets", "cac luong chu snippets", "cac luong khoa snippets", "cac luong theo 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 ("cac luong cho snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("cac luong cho snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( cac luong cho snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("cac luong cho snippets"))) or ("locating bug code snippets"))*.