Perhaps you should try some spelling variations:
"nhan xuan trinh snippets" » "nhan qua trinh snippets", "nhan xuan dinh snippets", "nhan xuan kinh snippets", "phan xuan trinh snippets", "nhan luan trinh snippets", "thanh xuan trinh snippets", "nhan xuan trinh 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: (((("nhan xuan trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan xuan trinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan xuan trinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan xuan trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.