Perhaps you should try some spelling variations:
"dung danh code snippets" » "dung doanh code snippets", "dung dan code snippets", "dung dang code snippets", "dung danh co snippets"
"trinh co code snippets" » "trinh do code snippets", "trinh cong code snippets", "trinh hoa code snippets", "trinh cfd code snippets"
"locating bug code slippers" » "locating bung code slippers", "locating bugs code slippers"

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