Perhaps you should try some spelling variations:
"khai xuan trinh snippets" » "khai qua trinh snippets", "khai xuan dinh snippets", "khai xuan kinh snippets", "khai tuan trinh snippets", "khai luan trinh snippets", "hai quan trinh snippets", "khai 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: (((("khai 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: (((("khai xuan trinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khai xuan trinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khai xuan trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.