Perhaps you should try some spelling variations:
"truan duc phung snippets" » "tran duc phung snippets", "xuan duc phung snippets", "tran duy phung snippets", "truan duc hung snippets", "truan duc thang snippets", "truan duc dung snippets", "truan 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: (((("truan 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: (((("truan duc phung snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( truan duc phung snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("truan duc phung snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.