Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luat co cach snippets" » "luat cho cach snippets", "luat so cach snippets", "luat cong cach snippets", "luat co cac snippets", "luat co sach snippets", "luat ca 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: (((("luat co 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: (((("luat co cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luat co cach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luat co cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.