Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh ca mo snippets" » "dan ca mo snippets", "doanh cua mo snippets", "danh cho mo snippets", "danh cay mo snippets", "danh va mo snippets", "danh ca o 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 ca mo 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 ca mo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh ca mo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh ca mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.