Perhaps you should try some spelling variations:
"duong anh tran snippets" » "duong manh tran snippets", "duong xanh tran snippets", "duong vanh tran snippets", "duong anh tuan snippets", "duong anh toan snippets", "duong anh trac snippets", "duong anh tran 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 anh tran 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 anh tran snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duong anh tran snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong anh tran snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.