Perhaps you should try some spelling variations:
"trinh vit con snippets" » "trinh viet con snippets", "trinh vat con snippets", "trinh vi con snippets", "trinh vot con snippets"
"dung cua code snippets" » "dung luan code snippets", "dung cho code snippets", "dung cua cong snippets", "dung cua co snippets", "dung cfd code snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets"

You may be able to get more results by adjusting your search query.

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