Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"van viet ly snippets" » "san viet ly snippets", "gian viet ly snippets", "tran viet ly snippets", "van tiet ly snippets", "van viet my snippets", "van viet ty 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: (((("van viet ly snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( van viet ly snippets ) or ( python using java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("van viet ly snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.