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