Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao duc danh slippers" » "dao duc anh slippers", "dao duc manh slippers", "dao duc hanh slippers", "giao duc danh slippers", "tao duoc danh slippers", "dao duc danh slippery", "dao duc danh grippers"
"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: (((("dao duc danh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao duc danh slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao duc danh slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao duc danh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.