Perhaps you should try some spelling variations:
"tran trung dai snippets" » "tran trong dai snippets", "tran tung dai snippets", "trac trung dai snippets", "tran truong dai snippets", "tran truong dao snippets", "tran trung tam snippets", "tran trung dai slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core 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 trung dai snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran trung dai snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran trung dai snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran trung dai snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.