Perhaps you should try some spelling variations:
"dan nuoi code snippets" » "dan nuoi con snippets", "dan nuoi de snippets", "ban nuoi code snippets", "chan nuoi code snippets", "ban nguoi code snippets", "dan nuoi code slippers"
"using a code snippets" » "using a 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: (((("using a code snippets") or ("dan nuoi code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using a code snippets") OR ("dan nuoi code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using a code snippets ) or ( dan nuoi code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using a code snippets") or ("dan nuoi code snippets"))) or ("locating bug code snippets"))*.