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