Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets"
"dao voi dai snippets" » "da voi dai snippets", "dao noi dai snippets", "do voi dai snippets", "dao vi dai snippets", "dao voi doi snippets", "dao hoi dai snippets"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao voi dai snippets") OR ("python using data snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( dao voi dai snippets ) or ( python using data snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dao voi dai snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.