Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dan dung ho snippets" » "van dung ho snippets", "tin dung ho snippets", "ap dung ho snippets", "dan dung cho snippets", "dan dung hoc snippets", "dan dung he 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: (((("dan dung ho snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan dung ho snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan dung ho snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan dung ho snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.