Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luat thi cho snippets" » "luat thai cho snippets", "luan thi cho snippets", "luat thu cho snippets", "luat thi choi snippets", "luat thi tho snippets", "luat thi thao 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: (((("luat thi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luat thi cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luat thi cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luat thi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.