Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"zhan dao le snippets" » "zhan gao le snippets", "chuan dao le snippets", "phan dau le snippets", "zhan do le snippets", "zhan dao ve snippets", "zhan hao le 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 dao le 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 dao le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( zhan dao le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("zhan dao le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.