Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van luan de snippets" » "van luan code snippets", "van quan de snippets", "van tuan de snippets", "von luan de snippets", "van luan den snippets", "van luan ve snippets", "van luat de snippets"
"python using java snippets" » "python using data snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using java snippets") or ("van luan de snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("van luan de snippets"))) OR ("locating bug core snippets"))*.
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( van luan de snippets ))) or ( locating bug core snippets ))*.