Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"phan dau cong snippets" » "phan tu cong snippets", "hang dau cong snippets", "phan cau cong snippets", "phan dai cong snippets", "phan dam 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 dau 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 dau cong snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan dau cong snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan dau cong snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.