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