Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dang mat ca snippets" » "dang vat ca snippets", "dang mau ca snippets", "dung mat ca snippets", "dang mat cua snippets", "dang mat can snippets", "dang mat ma 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 mat ca 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 mat ca snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang mat ca snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang mat ca snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.