Perhaps you should try some spelling variations:
"cong vang dat snippets" » "cong lang dat snippets", "cong quang dat snippets", "cong ngang dat snippets", "cong vung dat snippets", "cong van dat snippets", "cong mang dat snippets", "cong vang dat slippers"
"dung va java snippets" » "dung java java snippets", "dung va 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: (((("dung va java snippets") or ("cong vang dat snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung va java snippets") OR ("cong vang dat snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung va java snippets ) or ( cong vang dat snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung va java snippets") or ("cong vang dat snippets"))) or ("locating bug code snippets"))*.