Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"than tuan de snippets" » "thanh tuan de snippets", "tran tuan de snippets", "thanh xuan de snippets", "than tuan le snippets", "than luan de snippets", "than toan de 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: (((("than tuan de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("than tuan de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( than tuan de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("than tuan de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.