Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung tri than slippers" » "dung tai than slippers", "dung tren than slippers", "nhung tri than slippers", "dung tri nhan slippers", "dung thi than slippers", "dung tri phan slippers", "dung tri than slippery", "dung tri than grippers"
"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 tri than 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 tri than slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung tri than slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung tri than slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.