Perhaps you should try some spelling variations:
trung cong » truong cong, trong cong, trung uong
chieu sang » chieu sach, chieu xanh, hieu lang
cua trung » cua truong, xuan trung, cua nhung
dong cua » dung cua, cong cua, huong cua
dan toan » van toan, dan than, manh toan
van tuan » van quan, van ban, anh tuan
ha dong » hoat dong, van dong

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((dieu hanh) or (chieu sang)) - ha dong cua trung cong ((dan toan) or (van tuan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((dieu hanh) OR (chieu sang)) - ha dong cua trung cong ((dan toan) OR (van tuan)) ban.
• Adding a wildcard symbol may retrieve word variants: theo ((dieu hanh) or (chieu sang)) - ha dong cua trung cong ((dan toan) or (van tuan)) ban*.