Perhaps you should try some spelling variations:
"trong thoi code snippets" » "trong thi code snippets", "trong tho code snippets", "trong trot code snippets", "trong thoi code slippers"
"dung nhan code snippets" » "dung luan code snippets", "dung nhan co snippets", "dung nhan con snippets", "dung nhan 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: (((("dung nhan code snippets") or ("trong thoi code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung nhan code snippets") OR ("trong thoi code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung nhan code snippets ) or ( trong thoi code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung nhan code snippets") or ("trong thoi code snippets"))) or ("locating bug code snippets"))*.