Perhaps you should try some spelling variations:
"dung ung co snippets" » "dung trung co snippets", "dung quang co snippets", "dung chung co snippets", "dung dung co snippets", "dung dung cho snippets", "dung duong co snippets"
"tran si code snippets" » "tran thi code snippets", "tran gia code snippets", "tran si core snippets"
"locating bug code snippets" » "locating bug core snippets", "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: (((("tran si code snippets") or ("dung ung co snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran si code snippets") OR ("dung ung co snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran si code snippets ) or ( dung ung co snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran si code snippets") or ("dung ung co snippets"))) or ("locating bug code snippets"))*.