Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ham cau den snippets" » "ham chau den snippets", "nam cau den snippets", "hang cau den snippets", "ham cap den snippets", "ham cau de snippets", "ham hau den 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: (((("ham cau den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ham cau den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ham cau den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ham cau den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.