Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"dong luc zhang snippets" » "dong lue zhang snippets", "dong duc thang snippets", "dong luc nhan snippets", "nang luc zhang snippets", "dong luc zhang 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: (((("dung java java snippets") or ("dong luc zhang snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("dong luc zhang snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( dong luc zhang snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("dong luc zhang snippets"))) or ("locating bugs code snippets"))*.