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