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