Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nghe co cham snippets" » "nghe che cham snippets", "nghe hoa cham snippets", "nghe noi cham snippets", "nghe ca cham snippets", "nghe co champa snippets", "nghe cao chat 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 co cham 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 co cham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nghe co cham snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nghe co cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.