Perhaps you should try some spelling variations:
"trinh tren dat snippets" » "trinh truyen dat snippets", "trinh tuyen dat snippets", "trinh tieng dat snippets", "trinh tren dia snippets", "trinh tren may snippets", "trinh tren dat 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: (((("trinh tren dat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh tren dat snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh tren dat snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh tren dat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.