Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho bao toan snippets" » "cho bai toan snippets", "cho bao ton snippets", "cho bao thang snippets", "cho dao toan snippets", "cho bac toan snippets", "cho ba toan 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: (((("cho bao toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho bao toan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho bao toan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho bao toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.