Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho ba toan snippets" » "cho bai toan snippets", "cho bao toan snippets", "cho va toan snippets", "cho bac toan snippets", "cho ga 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 ba 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 ba toan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho ba toan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho ba toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.