Perhaps you should try some spelling variations:
thanh khong » thanh hong, thinh khong, thanh chuong
chieu xanh » chieu sach, chieu sang, chieu tinh
ho chieu » theo chieu, hoc thieu, mot chieu
gian dan » gian lang
dan dong » van dong, dan dung, dao dong
dong von » dung von, dong co, dong hoc
von van » van van, son van, ton van

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu xanh - thanh khong gian dan dong von van ban~.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - thanh khong gian dan dong von van ban*.