Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"che mon cho snippets" » "che cong cho snippets", "nghe mon cho snippets", "che mo cho snippets", "che moi cho snippets", "che ton cho 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: (((("che mon cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("che mon cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( che mon cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("che mon cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.