Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toan du noi snippets" » "tran duc noi snippets", "toan cau noi snippets", "toan dau noi snippets", "toan nu noi snippets", "toan duoc 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: (((("toan du noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toan du noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toan du noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toan du noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.