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