Perhaps you should try some spelling variations:
"dan dung code snippets" » "dan dung cong snippets", "dan dung co snippets", "dan dung de snippets", "van dung code snippets", "tin dung code snippets", "ap dung code snippets", "dan dung code slippers"
"doan va code snippets" » "doanh va code snippets", "toan va code snippets", "soan va code snippets", "doan va code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("doan va code snippets") or ("dan dung code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doan va code snippets") OR ("dan dung code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doan va code snippets ) or ( dan dung code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doan va code snippets") or ("dan dung code snippets"))) or ("locating bug code snippets"))*.