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