Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"zhan tao son snippets" » "nhan tao son snippets", "zhan gao son snippets", "nhan tai son snippets", "zhan tao song snippets", "zhan cao son snippets", "zhan tay son 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: (((("zhan tao son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("zhan tao son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( zhan tao son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("zhan tao son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.