Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"tung dan da snippets" » "dung dan da snippets", "huong dan da snippets", "trung dai da snippets", "tung dan dat snippets", "tung dan ca snippets", "tung dan va 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: (((("tung dan da snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tung dan da snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tung dan da snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tung dan da snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.