Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toan da cu snippets" » "toan dam cu snippets", "toan dai cu snippets", "toan dau cu snippets", "toan da cau snippets", "toan dan cu snippets", "toan da cua 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 da cu 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 da cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toan da cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toan da cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.