Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"dngu java java snippets" » "ngu java java snippets", "dngu java java slippers"
"duc phung java snippets" » "duc hung java snippets", "duc thang java snippets", "duc dung java snippets", "duc phung java slippers"

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: (((("dngu java java snippets") or ("duc phung java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dngu java java snippets") OR ("duc phung java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dngu java java snippets ) or ( duc phung java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dngu java java snippets") or ("duc phung java snippets"))) or ("locating bugs code snippets"))*.