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