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