Perhaps you should try some spelling variations:
"dung soan theo slippers" » "dung san theo slippers", "dung toan theo slippers", "dung doanh theo slippers", "dung soan thao slippers", "dung soan theo slippery", "dung soan theo grippers"
"dung java java snippets" » "dung va java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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 soan theo slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung soan theo slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung soan theo slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung soan theo slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.