Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"tung dan cat snippets" » "dung dan cat snippets", "huong dan cat snippets", "trung dai cat snippets", "tung dan ca snippets", "tung dan dat snippets", "tung dan cac 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 cat 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 cat snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tung dan cat snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tung dan cat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.