Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan nam cach snippets" » "dan nam sach snippets", "dan nam cac snippets", "dan nhan cach snippets", "van nam cach snippets", "dong nam cach snippets", "dinh nam cach 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: (((("dan nam cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan nam cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan nam cach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan nam cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.