Perhaps you should try some spelling variations:
"dung quang q slippers" » "dang quang q slippers", "luong quang q slippers", "dung luan q slippers", "dung quang _ slippers", "dung quang d slippers", "dung quang y slippers", "dung quang q slippery", "dung quang q grippers"
"python using java snippets" » "python using data snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung quang q slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung quang q slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung quang q slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung quang q slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.