Perhaps you should try some spelling variations:
"python using code snippets" » "python using cfd snippets", "python using one snippets", "python using code slippers"
"danh ca thi snippets" » "dan ca thi snippets", "doanh cua thi snippets", "danh cho thi snippets", "danh cau thi snippets", "danh can thi snippets", "danh cao thi snippets", "danh ca thi slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("danh ca thi snippets") OR ("python using code snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( danh ca thi snippets ) or ( python using code snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("danh ca thi snippets") or ("python using code snippets"))) or ("locating bug code snippets"))*.