Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"khoi noi de snippets" » "khoi noi code snippets", "khoa noi de snippets", "khi noi de snippets", "khop noi de snippets", "khoi nuoi de snippets", "khoi noi ve snippets", "khoi noi da 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: (((("khoi noi de snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoi noi de snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( khoi noi de snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi noi de snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.