Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dang su can snippets" » "dang su van snippets", "dang su cao snippets", "dang su han snippets", "dan su can snippets", "dong su can snippets", "nang su can 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 can 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 can snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang su can snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang su can snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.