Perhaps you should try some spelling variations:
thong trung » thong trong, chong trung, truong trung
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tung » thanh cong
cua thong » cua thuong, cua khong, cua tong
trung dai » truong dai, truong dao, trung tam
tung cua » trung cua, tuong cua, dung cua
phan cau » phan dau, phan cac, phan tu
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: theo chieu xanh - thanh tung cua thong trung dai ((phan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - thanh tung cua thong trung dai ((phan cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - thanh tung cua thong trung dai ((phan cau) or (toan cao))*.