Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
hanh trung » thanh trung, hanh trang, manh trung
trung tham » trung tam, trung thanh, trung thang
tham nhung » thi nhung
nhung cong » dung cong, thong cong, hang cong
hien xanh » hien hanh, hien nhanh, chieu xanh
cong ban » cong bang, cong san, cong tan
ban than » ban thanh, van thanh, ban hang
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien xanh) or (thien thanh)) - hanh trung tham nhung cong ban than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (thien thanh)) - hanh trung tham nhung cong ban than cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (thien thanh)) - hanh trung tham nhung cong ban than cau*.