Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"danh du thi snippets" » "danh dau thi snippets", "danh tu thi snippets", "dinh du thi snippets", "danh duc thi snippets", "danh do thi snippets", "danh su thi 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: (((("danh du thi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( danh du thi snippets ) or ( python using java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("danh du thi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.