Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dan viet hop snippets" » "dan viet code snippets", "danh viet hop snippets", "san viet hop snippets", "dao viet hop snippets", "dan viet hoan snippets", "dan viet khoa snippets", "dan viet phap snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing 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: (((("dan viet hop snippets") or ("python using data snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan viet hop snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dan viet hop snippets ) or ( python using data snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan viet hop snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.