Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nang di cau snippets" » "nang du cau snippets", "hang di cau snippets", "nang ji cau snippets", "nang da cau snippets", "nang diem cau 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: (((("nang di 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: (((("nang di cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang di cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang di cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.