Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung tru cau snippets" » "dung tri cau snippets", "dung thu cau snippets", "dung tu cau snippets", "dung truc cau snippets", "dung tru sau snippets", "dung tra cau 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: (((("dung java java snippets") or ("dung tru cau snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("dung tru cau snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( dung tru cau snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("dung tru cau snippets"))) or ("locating bug code snippets"))*.