Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuc cach he snippets" » "thuoc sach he snippets", "truoc cach he snippets", "thuc hanh he snippets", "thuc cac he snippets", "thuc cach de snippets", "thuc cach 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: (((("thuc cach he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuc cach he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuc cach he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuc cach he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.