Perhaps you should try some spelling variations:
"dung toan tran snippets" » "dung doanh tran snippets", "dung thang tran snippets", "dung thanh tran snippets", "dung thoan tran snippets", "dung tan tran snippets", "dung hoan tran snippets", "dung toan tran slippers"
"hang java java snippets" » "hang va java snippets", "hang 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: (((("dung toan tran snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung toan tran snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung toan tran snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung toan tran snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.