Perhaps you should try some spelling variations:
"dong tinh java snippets" » "dong kinh java snippets", "dong tin java snippets", "cong tinh java snippets", "dong trinh java snippets", "dong think java snippets", "dong tinh va snippets", "dong tinh java slippers"
"dung hung dat snippets" » "dung chung dat snippets", "dung nhung dat snippets", "dung huong dat snippets", "dung dung dat snippets", "dung vung dat snippets", "dung hung dao snippets", "dung hung dat slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("dong tinh java snippets") or ("dung hung dat snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong tinh java snippets") OR ("dung hung dat snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong tinh java snippets ) or ( dung hung dat snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong tinh java snippets") or ("dung hung dat snippets"))) or ("locating bug code snippets"))*.