Perhaps you should try some spelling variations:
"nhan hieu trinh snippets" » "nhan tieu trinh snippets", "nhan lieu tinh snippets", "nhan tien trinh snippets", "nhan dieu trinh snippets", "phan hieu trinh snippets", "nha hieu trinh snippets", "nhan hieu 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 hieu 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 hieu trinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan hieu trinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan hieu trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.