Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khau luan du snippets" » "khoa luan du snippets", "phap luan du snippets", "pham luan du snippets", "khau xuan du snippets", "khau luat du snippets", "khau luan de 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: (((("khau luan du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khau luan du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khau luan du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khau luan du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.