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