Perhaps you should try some spelling variations:
"dung hanh han slippers" » "dung thanh han slippers", "dang hanh han slippers", "dung danh han slippers", "dung hanh nhan slippers", "dung hanh phan slippers", "dung hanh san slippers", "dung hanh han slippery", "dung hanh han 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 hanh han 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 hanh han slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung hanh han slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung hanh han slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.