Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"phan bon cong snippets" » "phan bo cong snippets", "phan cong cong snippets", "phan song cong snippets", "phan ban cong snippets", "phan bot cong snippets"
"locating bug code snippets" » "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: (((("phan bon cong snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan bon cong snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan bon cong snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan bon cong snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.