Perhaps you should try some spelling variations:
thiet tach » chiet tach, thuat tach
thien hach » thien thanh
hanh trung » thanh trung, hanh trang, manh trung
nhung cong » dung cong, thong cong, hang cong
hien hanh » dieu hanh
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong san » cong tac
san than » sang than, san thanh, ban than
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: ho ((thiet tach) or (((thien hach) OR (hien hanh)))) - hanh trung cua nhung cong san than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((thiet tach) OR (((thien hach) OR (hien hanh)))) - hanh trung cua nhung cong san than cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((thiet tach) or (((thien hach) OR (hien hanh)))) - hanh trung cua nhung cong san than cau*".