Perhaps you should try some spelling variations:
"dung cong che snippets" » "dung trong che snippets", "dung cong cho snippets", "dung cong chi snippets", "dung cong chu snippets"
"dang ngu java snippets" » "dang nhu java snippets", "dang nghe java snippets", "dang ngoc java snippets", "dang ngu va 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 ngu java snippets") or ("dung cong che snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang ngu java snippets") OR ("dung cong che snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang ngu java snippets ) or ( dung cong che snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang ngu java snippets") or ("dung cong che snippets"))) or ("locating bug code snippets"))*.