Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh kiem cao snippets" » "anh kien cao snippets", "khanh kiem cao snippets", "nganh kiem cao snippets", "anh vien cao snippets", "anh diem cau snippets", "anh hiem 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: (((("anh kiem cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh kiem cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh kiem cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh kiem cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.