Perhaps you should try some spelling variations:
"dung thang dan snippets" » "hung thang dan snippets", "cung thang dan snippets", "dung thuong dan snippets", "dung tang dan snippets", "dung thong dan snippets", "dung thanh dan snippets", "dung thang 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: (((("dung thang 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: (((("dung thang dan snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung thang dan snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung thang dan snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.