Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lich su cach snippets" » "lich su sach snippets", "lich tu cach snippets", "lich su cac snippets", "dich su cach snippets", "tich su cach snippets", "linh su cach 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: (((("lich su cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lich su cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lich su cach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lich su cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.