Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chang su can snippets" » "chang xu can snippets", "chang xue can snippets", "dang su can snippets", "chang su van snippets", "chang su cao snippets", "chang su han snippets"
"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: (((("chang su can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chang su can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chang su can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chang su can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.