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