Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hoc sach den snippets" » "hoc sach code snippets", "hoc sinh den snippets", "hoc cac den snippets", "hoc anh den snippets", "hoc sach de snippets", "hoc sach dung snippets", "hoc mach dien 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: (((("hoc sach den snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc sach den snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hoc sach den snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc sach den snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.