Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tinh cao den snippets" » "tinh lao den snippets", "tinh chat den snippets", "tinh cach den snippets", "tinh cao de snippets", "tinh cap den snippets", "tinh cau den 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: (((("tinh cao den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tinh cao den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tinh cao den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tinh cao den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.