Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
tong huong » thong huong, tong thuong, dong huong
cong huong » cong thuong, cong luong, cong hung
trung cua » truong cua, trung tuan, trung cap
ho chieu » theo chieu, hoc thieu, doi chieu
dan phan » doan phan, dan chan, van phan

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 trung cua ((tong huong) or (cong huong)) dan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - thanh trung cua ((tong huong) OR (cong huong)) dan phan tu.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - thanh trung cua ((tong huong) or (cong huong)) dan phan tu*.