Perhaps you should try some spelling variations:
"hanh moi dat snippets" » "thanh moi dat snippets", "hanh noi dat snippets", "hanh mot dat snippets", "hanh moi bat snippets", "hanh hoi dat snippets", "hanh moi dan snippets", "hanh moi 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 ("hanh moi 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 ("hanh moi dat snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung va java snippets ) or ( hanh moi dat snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung va java snippets") or ("hanh moi dat snippets"))) or ("locating bug code snippets"))*.