Perhaps you should try some spelling variations:
"dung nphan code snippets" » "dung nhan code snippets", "dung phan code snippets", "dung ngan code snippets", "dung npphan code snippets", "dung npnhan code snippets", "dung nphanh code snippets"
"han 2 code snippets" » "phan 2 code snippets", "nhan 2 code snippets", "hanh 2 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: (((("han 2 code snippets") or ("dung nphan code snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("han 2 code snippets") OR ("dung nphan code snippets"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( han 2 code snippets ) or ( dung nphan code snippets ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("han 2 code snippets") or ("dung nphan code snippets"))) or ("locating bug code slippers"))*.