Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"o dung hieu snippets" » "o dong hieu snippets", "o dung tieu snippets", "o trung hieu snippets", "so dung hieu snippets", "do dung hieu 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: (((("o dung hieu snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( o dung hieu snippets ) or ( python using java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("o dung hieu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.