Perhaps you should try some spelling variations:
"trinh phan dat snippets" » "trinh han dat snippets", "trinh quan dat snippets", "thanh phan dat snippets", "trinh phan dau snippets", "trinh phan dai snippets", "trinh phan day snippets", "trinh phan dat slippers"
"dung rung code snippets" » "dung trung code snippets", "duong rung code snippets", "dung ung code snippets", "dung rung 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 dat snippets") or ("dung rung code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh phan dat snippets") OR ("dung rung code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh phan dat snippets ) or ( dung rung code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh phan dat snippets") or ("dung rung code snippets"))) or ("locating bug code snippets"))*.