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