Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh bai con snippets" » "anh bai con snippets", "danh bat con snippets", "dang bai con snippets", "danh bai lon snippets", "danh hai con snippets", "danh tai cong 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 bai con 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 bai con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh bai con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh bai con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.