Perhaps you should try some spelling variations:
"thao khoa dat snippets" » "thai khoa dat snippets", "toan khoa dat snippets", "pham khoa dat snippets", "thao hoa dat snippets", "thao khoa dang snippets", "thao khoan dau snippets", "thao khoa 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: (((("thao khoa 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: (((("thao khoa dat snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thao khoa dat snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thao khoa dat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.