Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
trung tuan » trung thanh, trung tam, tran tuan
hung cuong » hung vuong, hong cuong, hung luong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hung cong » nhung cong, phung cong, dung cong
toan cau » 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: ho ((hieu manh) or (chieu sach)) - thanh trung tuan ((hung cong) OR (hung cuong)) tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu sach)) - thanh trung tuan ((hung cong) OR (hung cuong)) tinh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) or (chieu sach)) - thanh trung tuan ((hung cong) OR (hung cuong)) tinh toan cau".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sach)) - thanh trung tuan ((hung cong) OR (hung cuong)) tinh toan cau*.