Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai cua lon snippets" » "thai cua lon snippets", "hoi cua lon snippets", "dai cua lon snippets", "hai cua con snippets", "hai cua hon snippets", "hai cua loc 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: (((("hai cua lon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hai cua lon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai cua lon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai cua lon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.