Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dao va duoc snippets" » "dao vat duoc snippets", "dao va cuoc snippets", "dao va doc snippets", "dao van duoc snippets", "tao va duoc snippets", "do va duoc 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 va duoc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( dao va duoc snippets ) or ( python using java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dao va duoc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.