Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung toi sach slippers" » "dung thoi sach slippers", "dung tai sach slippers", "dung doi sach slippers", "dung troi sach slippers", "dung moi sach slippers", "dung toc sach slippers", "dung toi sach slippery", "dung toi sach 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 toi sach 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 toi sach slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung toi sach slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung toi sach slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.