Perhaps you should try some spelling variations:
"nhung hoi trac slippers" » "nhung thoi trac slippers", "nhung loi trac slippers", "nhung noi trac slippers", "nhung hoi trach slippers", "nhung hoi tran slippers", "nhung hoi tac slippers", "nhung hoi trac slippery", "nhung hoi trac 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: (((("nhung hoi trac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhung hoi trac slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung hoi trac slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung hoi trac slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.