Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam che mon snippets" » "nam chi mon snippets", "nam he mon snippets", "nam cho mon snippets", "nam che cong snippets", "nam nghe mon 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 che mon 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 che mon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam che mon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam che mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.