Perhaps you should try some spelling variations:
"dung danh tranh slippers" » "dung canh tranh slippers", "dung danh thanh slippers", "dung lanh tranh slippers", "dung doanh tranh slippers", "dung dan tranh slippers", "dung dang tranh slippers", "dung danh tranh slippery", "dung danh tranh grippers"
"hang java java snippets" » "hang 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 danh tranh slippers") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung danh tranh slippers") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung danh tranh slippers ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung danh tranh slippers") or ("hang java java snippets"))) or ("locating bug code snippets"))*.