Perhaps you should try some spelling variations:
"dan thuoc tu snippets" » "dang thuoc tu snippets", "dan thuc tu snippets", "ban thuoc tu snippets", "dan thuoc tru snippets", "dan thuoc tai snippets", "dan thuoc cuc snippets", "dan thuoc tu 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: (((("dan thuoc tu snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan thuoc tu snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan thuoc tu snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan thuoc tu snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.