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