Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van hang vo snippets" » "van hang code snippets", "van khang vo snippets", "van hoang vo snippets", "van thang vo snippets", "van hang va snippets", "van hang vi snippets", "van hang ve snippets"
"python using java snippets" » "python using data 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: (((("python using java snippets") OR ("van hang vo snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( van hang vo snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("van hang vo snippets"))) or ("locating bug core snippets"))*.