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