Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao lai cong snippets" » "dao tai cong snippets", "dao dai cong snippets", "dao li cong snippets", "dao lam cong snippets", "dao bai cong snippets", "dao hai cong 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: (((("dao lai cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao lai cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao lai cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao lai cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.