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