Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban tran ca snippets" » "ban trang ca snippets", "tan tran ca snippets", "ban than ca snippets", "ban tan ca snippets", "ban tranh cua snippets", "ban tran chau 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: (((("ban tran ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban tran ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban tran ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban tran ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.