Perhaps you should try some spelling variations:
"tang xuan trinh snippets" » "tang qua trinh snippets", "tang xuan dinh snippets", "tang xuan kinh snippets", "tang luan trinh snippets", "tang quan trinh snippets", "dang xuan trinh snippets", "tang xuan trinh slippers"
"dung cac code snippets" » "luong cac code snippets", "dung cho code snippets", "dung tai code snippets", "dung cac cong snippets", "dung cac co snippets", "dung cac che snippets", "dung cac code 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("tang xuan trinh snippets") or ("dung cac code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tang xuan trinh snippets") OR ("dung cac code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tang xuan trinh snippets ) or ( dung cac code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tang xuan trinh snippets") or ("dung cac code snippets"))) or ("locating bug code snippets"))*.