Perhaps you should try some spelling variations:
"ngan hang trinh snippets" » "ngan hanh trinh snippets", "ngan thanh trinh snippets", "ngan trang trinh snippets", "nganh hang trinh snippets", "nhan hang trinh snippets", "ngan hang 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: (((("ngan hang 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: (((("ngan hang trinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngan hang trinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngan hang trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.