Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"khoa can do snippets" » "khoa can code snippets", "khoa cam do snippets", "khoa cap do snippets", "khoi can do snippets", "khoa can bo snippets", "khoa ban do snippets", "khoa van do snippets"
"python using java snippets" » "python using data snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("khoa can do 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 can do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( khoa can do snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoa can do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.