Perhaps you should try some spelling variations:
"duong xuan duc snippets" » "dong xuan duc snippets", "luong xuan duc snippets", "duong quan duc snippets", "duong tran duc snippets", "duong phan duc snippets", "duong xuan huy snippets", "duong xuan duc 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"

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 duc 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 duc snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duong xuan duc snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong xuan duc snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.