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