Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dong ket chi snippets" » "dong kem chi snippets", "dung ket chi snippets", "dong viet chi snippets", "dong ke chi snippets", "dong keo chi snippets", "dong kien chi 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 ket chi 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 ket chi snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong ket chi snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong ket chi snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.