Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam dan thue snippets" » "nam dan thuc snippets", "nam dan thu snippets", "nam van thue snippets", "nam dinh thue 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: (((("nam dan thue snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nam dan thue snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam dan thue snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam dan thue snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.