Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luat cac chi snippets" » "luat can chi snippets", "luat cau chi snippets", "xuat cac chi snippets", "luat ca chi snippets", "luat cac che snippets", "luat cac thi 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 cac chi 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 cac chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luat cac chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luat cac chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.