Perhaps you should try some spelling variations:
"trinh phat hanh snippets" » "trinh phan hanh snippets", "trinh chat hanh snippets", "trinh phap hanh snippets", "trinh phat thanh snippets", "trinh nhat hanh snippets", "trinh pham hanh snippets", "trinh phat hanh 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"

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