Perhaps you should try some spelling variations:
"nhung tri nhap snippets" » "nhung bai nhap snippets", "nhung bi nhap snippets", "nhung gi nhap snippets", "nhung tri nhan snippets", "nhung tri nha snippets", "nhung trinh nhap snippets", "nhung tri nhap 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: (((("nhung tri nhap snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhung tri nhap snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung tri nhap snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung tri nhap snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.