Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"han luan trinh snippets" » "han xuan trinh snippets", "han luan tinh snippets", "han luan tranh snippets", "hang luan trinh snippets", "nhan luan trinh snippets", "dan luan trinh snippets", "han luan trinh slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"

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: (((("han luan trinh snippets") or ("dung java java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("han luan trinh snippets") OR ("dung java java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( han luan trinh snippets ) or ( dung java java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han luan trinh snippets") or ("dung java java snippets"))) or ("locating bugs code snippets"))*.