Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dang co cac snippets" » "dong co cac snippets", "dung co cac snippets", "dang do cac snippets", "dang cho cac snippets", "dang ca cac snippets", "dang co 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: (((("dang co cac 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 co cac snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang co cac snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang co cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.