Perhaps you should try some spelling variations:
cua thuong » cua truong, cua phuong, ca thuong
cong thanh » dong thanh, cong trinh, truong thanh
hanh mang » nhanh mang, hanh trang, nhanh lang
mang cua » manh cua, dung cua, ban cua
cong tan » cong tac, cong san, cong ty
than cao » thai cao, than cap, than sao
toan cao » toan ban, toan tap
dong » dung
trieu » thieu, trien, tieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong trieu tinh - hanh mang cua thuong ((cong tan) or (cong thanh)) ((than cao) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong trieu tinh - hanh mang cua thuong ((cong tan) OR (cong thanh)) ((than cao) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: dong trieu tinh - hanh mang cua thuong ((cong tan) or (cong thanh)) ((than cao) or (toan cao))*.