Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"day danh ca snippets" » "day manh ca snippets", "dai danh ca snippets", "dao danh ca snippets", "day dan ca snippets", "day doanh cua snippets", "day danh cho 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: (((("day danh ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("day danh ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( day danh ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("day danh ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.