Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh cau cua snippets" » "danh dau cua snippets", "danh ca cua snippets", "danh hau cua snippets", "danh cau qua snippets", "danh cu cua 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 cau cua 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 cau cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh cau cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh cau cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.