Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung su doanh slippers" » "dung cua doanh slippers", "dung muc doanh slippers", "dung sam doanh slippers", "dung cu doanh slippers", "dung du doanh slippers", "dung so doanh slippers", "dung su doanh slippery", "dung su doanh 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 su doanh 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 su doanh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung su doanh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung su doanh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.