Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung cho nhat slippers" » "dung cho nha slippers", "dung cho nhan slippers", "dung cho phat slippers", "dung cho nhat slippery", "dung cho nhat 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 cho nhat 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 cho nhat slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cho nhat slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cho nhat slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.