Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thiet » hoc thieu, hoc thuyet, hoc hien
ca thuong » cao thuong, cua thuong, va thuong
ho chieu » theo chieu, hoc thieu, doi chieu
tranh ca » tranh cua, tranh cac, tranh cai
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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 thiet) or (ho chieu)) tach - hanh tranh ca thuong cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thiet) OR (ho chieu)) tach - hanh tranh ca thuong cong tan toan cao.
• Adding a wildcard symbol may retrieve word variants: ((hoc thiet) or (ho chieu)) tach - hanh tranh ca thuong cong tan toan cao*.