Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trang » thanh trung, canh tranh, hanh trinh
trang tuan » tran tuan, trung tuan, trong tuan
pdung cong » phung cong, dang cong, duong cong
hoc chieu » hoc thieu, ho chieu, hoc hien
dung cong » dung trong
tan toan » tan tran, tap toan, van toan
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: hoc chieu xanh - hanh trang tuan ((dung cong) or (pdung cong)) tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh trang tuan ((dung cong) OR (pdung cong)) tan toan cau*.