Perhaps you should try some spelling variations:
"dung tinh java snippets" » "dang tinh java snippets", "dung ninh java snippets", "dung tin java snippets", "dung trinh java snippets", "dung think java snippets", "dung tinh va snippets"
"dong dan de snippets" » "dong danh de snippets", "duong dan de snippets", "dong san de snippets", "dong dan den snippets", "dong dang de snippets", "dong van de 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 tinh java snippets") or ("dong dan de snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung tinh java snippets") OR ("dong dan de snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung tinh java snippets ) or ( dong dan de snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung tinh java snippets") or ("dong dan de snippets"))) or ("locating bug code snippets"))*.