Perhaps you should try some spelling variations:
"dong huong code snippets" » "dong thuong code snippets", "dong duong code snippets", "cong huong code snippets", "dong huong co snippets", "dong huong com snippets", "dong huong code slippers"
"duc phan code snippets" » "duc phan cong snippets", "duc phan co snippets", "duc phan che snippets", "dung phan code snippets", "duc thang code snippets", "duc phung code snippets", "duc phan 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: (((("duc phan code snippets") or ("dong huong code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc phan code snippets") OR ("dong huong code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc phan code snippets ) or ( dong huong code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc phan code snippets") or ("dong huong code snippets"))) or ("locating bug code snippets"))*.