Perhaps you should try some spelling variations:
"trinh phan code snippets" » "trinh han code snippets", "trinh quan code snippets", "thanh phan code snippets", "trinh phan cong snippets", "trinh phan co snippets", "trinh phan che snippets", "trinh phan code slippers"
"tong cong code snippets" » "trong cong code snippets", "cong cong code snippets", "dung cong code snippets", "tong cong cong snippets", "tong cong co snippets", "tong cong che snippets", "tong cong code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

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