Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"dan viet trinh snippets" » "dan viet trung snippets", "dan viet thanh snippets", "dan viet trong snippets", "danh viet trinh snippets", "san viet trinh snippets", "dao viet trinh snippets", "dan viet trinh slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"

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 viet trinh snippets") or ("dung java java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan viet trinh snippets") OR ("dung java java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dan viet trinh snippets ) or ( dung java java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan viet trinh snippets") or ("dung java java snippets"))) or ("locating bugs code snippets"))*.