Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho cay doan snippets" » "cho cay dan snippets", "cho cay xoan snippets", "cho chan doan snippets", "cho cac doan snippets", "cho vay doan snippets", "cho can doan 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 cay doan 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 cay doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho cay doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho cay doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.