Perhaps you should try some spelling variations:
"nhung cau code snippets" » "chung cu code snippets", "nhung bai code snippets", "nhu cau code snippets", "nhung cau cong snippets", "nhung cau de snippets", "nhung cfd code snippets", "nhung cau code slippers"
"dung he code snippets" » "dung cho code snippets", "dung he code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung he code snippets") or ("nhung cau code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung he code snippets") OR ("nhung cau code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung he code snippets ) or ( nhung cau code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung he code snippets") or ("nhung cau code snippets"))) or ("locating bug code snippets"))*.