Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bui tan toan snippets" » "bui tan tran snippets", "bui tap toan snippets", "bui van toan snippets", "bui thanh toan snippets", "bui manh toan 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: (((("bui tan toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bui tan toan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bui tan toan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bui tan toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.