Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
khong cong » thong cong, khong cang, khong con
chong cong » cong cong, thong cong, cuong cong
trung hoa » trung hoc, trung ha
ho chieu » theo chieu, hoc thieu, doi chieu
toan cau » toan cao, toan ban, toan tap

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 hoa ((khong cong) OR (chong cong)) tinh toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - thanh trung hoa ((khong cong) OR (chong cong)) tinh toan cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - thanh trung hoa ((khong cong) OR (chong cong)) tinh toan cau*.