Perhaps you should try some spelling variations:
"trinh phap lua snippets" » "trinh phan lua snippets", "trinh han lua snippets", "trinh chat lua snippets", "trinh phap luat snippets", "trinh phap luan snippets", "trinh phap luu snippets"
"dung cho code slippers" » "dung cho cong slippers", "dung cfd code slippers", "dung cho con slippers"
"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.

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