Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dong duc hoan snippets" » "duong duc hoan snippets", "dong duoc hoan snippets", "dong luc hoan snippets", "dong duc hoang snippets", "dong duc hoa snippets", "dong duc toan 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 duc hoan 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 duc hoan snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong duc hoan snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong duc hoan snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.