Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dau voi luc snippets" » "dau noi luc snippets", "da voi luc snippets", "dao voi luc snippets", "dau voi suc snippets", "dau voi cuoc 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: (((("dau voi luc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( dau voi luc snippets ) or ( python using java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dau voi luc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.