Perhaps you should try some spelling variations:
"duc chinh dat snippets" » "duc thinh dat snippets", "duc hinh dat snippets", "cuoc chinh dat snippets", "duc chinh phat snippets", "duc chinh dang snippets", "duc chinh danh snippets", "duc chinh dat slippers"
"dung java java snippets" » "dung va java snippets", "dung java java 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: (((("duc chinh dat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc chinh dat snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc chinh dat snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc chinh dat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.