Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vai cac cau snippets" » "va cac cau snippets", "tai cac cau snippets", "voi cac cau snippets", "vai cac mau snippets", "vai bac cau snippets", "vai ca cau 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: (((("vai cac 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: (((("vai cac cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vai cac cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vai cac cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.