Perhaps you should try some spelling variations:
"tran dang dan snippets" » "tran quang dan snippets", "tran hoang dan snippets", "tranh hang dan snippets", "tran dang dang snippets", "tran dang van snippets", "tran dung dan snippets", "tran dang dan 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: (((("tran dang dan snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran dang dan snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran dang dan snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran dang dan snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.