Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh tra cau snippets" » "anh trac cau snippets", "anh ta cau snippets", "thanh tra cau snippets", "anh tra sau snippets", "anh tra cuu 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: (((("anh tra cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh tra cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh tra cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh tra cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.