Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan quan cau snippets" » "van quan cau snippets", "ban quan cau snippets", "dan luan cau snippets", "dan quang cao snippets", "dan toan cau snippets", "dan quan ha 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 quan cau 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 quan cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan quan cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan quan cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.