Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van tuan he snippets" » "van tuan code snippets", "van quan he snippets", "van ban he snippets", "anh tuan he snippets", "van tuan le snippets", "van toan he 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 tuan he snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( van tuan he snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("van tuan he snippets"))) or ("locating bug core snippets"))*.