Perhaps you should try some spelling variations:
"doan hinh java slippers" » "hoan chinh java slippers", "hoa hinh java slippers", "doan trinh java slippers", "doan think java slippers", "doan hinh va slippers", "doan hinh java slippery", "doan hinh java 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: (((("doan hinh java slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doan hinh java slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doan hinh java slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doan hinh java slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.