Perhaps you should try some spelling variations:
"dung ngo chien snippets" » "dung ngoc chien snippets", "dung nguoi chien snippets", "dung nam chien snippets", "dung ngon chien snippets", "dong ngo chien snippets", "dung nga chien snippets"
"dung java java snippets" » "dung va java 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: (((("dung ngo chien snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung ngo chien snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung ngo chien snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung ngo chien snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.