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