Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nao noi cau snippets" » "nam noi cau snippets", "dao noi cau snippets", "nang noi cau snippets", "nao hoi cau snippets", "nao loi cau snippets", "nao noi dau 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: (((("nao noi 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: (((("nao noi cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nao noi cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nao noi cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.