Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dang su con snippets" » "dang su cong snippets", "dang su co snippets", "dang su can snippets", "dan su con snippets", "dong su con snippets", "nang su con 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: (((("dang su con snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang su con snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang su con snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang su con snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.