Perhaps you should try some spelling variations:
"hang java java snippets" » "hang va java snippets"
"dung dat xac slippers" » "dung va xac slippers", "dung tai xac slippers", "dung dan xac slippers", "dung dau xac slippers", "dung dat sach slippers", "dung dat xac slippery", "dung dat xac 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 dat xac 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 dat xac slippers") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung dat xac slippers ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung dat xac slippers") or ("hang java java snippets"))) or ("locating bug code snippets"))*.