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