Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nghe cao cu snippets" » "nghe co cu snippets", "nghe nano cu snippets", "nghe chan cu snippets", "nghe cao chu snippets", "nghe tao cu snippets", "nghe cao su 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: (((("nghe cao cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nghe cao cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nghe cao cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nghe cao cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.