Perhaps you should try some spelling variations:
"duong xuan nhap snippets" » "dong xuan nhap snippets", "luong xuan nhap snippets", "duong quan nhap snippets", "duong xuat nhap snippets", "duong xuan nhan snippets", "duong xuan nha snippets", "duong xuan 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: (((("duong xuan 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: (((("duong xuan nhap snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duong xuan nhap snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong xuan nhap snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.