Perhaps you should try some spelling variations:
"hang java java snippets" » "hang va java snippets"
"dung cau phan slippers" » "dung chau phan slippers", "dung cu phan slippers", "dung cac phan slippers", "dung cuu phan slippers", "dung cau phan slippery", "dung cau phan 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 cau phan slippers") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cau phan slippers") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cau phan slippers ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cau phan slippers") or ("hang java java snippets"))) or ("locating bug code snippets"))*.