Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nghe noi cua snippets" » "nghe hoa cua snippets", "ghep noi cua snippets", "nghe vi cua snippets", "nghe hoi cua snippets", "nghe doi cua snippets", "nghe moi cua 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 noi cua 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 noi cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nghe noi cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nghe noi cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.