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