Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dang hai son snippets" » "dang khai son snippets", "hang hai son snippets", "dung hai son snippets", "dang thai son snippets", "dang ha son snippets", "dang dai son 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: (((("dang hai son snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang hai son snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang hai son snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang hai son snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.