Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh cho xe snippets" » "danh cho he snippets", "danh cho xa snippets", "doanh cho xe snippets", "dan cho xe snippets", "dinh cho xe 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: (((("danh cho xe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("danh cho xe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh cho xe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh cho xe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.