Perhaps you should try some spelling variations:
"tich tieu trinh snippets" » "tich tien trinh snippets", "tich tien thinh snippets", "tich trieu tinh snippets", "tich hieu trinh snippets", "tich tiem trinh snippets", "tich thiet trinh snippets", "tich tieu trinh 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: (((("tich tieu trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tich tieu trinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tich tieu trinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tich tieu trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.