Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao tao tran slippers" » "dao tan tran slippers", "dao bao tran slippers", "dao tao trong slippers", "dao tao tran slippery", "dao tao tran 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: (((("dao tao tran 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 tao tran slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao tao tran slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao tao tran slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.