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