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