Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xoa doc cao snippets" » "xoa doi cao snippets", "hoa doc cao snippets", "hoa duoc cao snippets", "xoa hoc cao snippets", "xoa do cao snippets", "xoa doc 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: (((("xoa doc 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: (((("xoa doc cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xoa doc cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xoa doc cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.