Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"tung doc vi snippets" » "tung do vi snippets", "vung doc vi snippets", "trung duoc vi snippets", "tung hoc vi snippets", "tung don vi snippets", "tung doc va 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 ("tung doc vi snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( tung doc vi snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("tung doc vi snippets"))) or ("locating bug core snippets"))*.