Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » thong cong, hang cong, nhung don
dung cong » dung trong
than cau » toan cau, phan cau, than cap
khan cap » khan ap, than cap, khoan cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - thanh trung tuan ((nhung cong) or (dung cong)) tan ((than cau) or (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh trung tuan ((nhung cong) OR (dung cong)) tan ((than cau) OR (khan cap)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh trung tuan ((nhung cong) or (dung cong)) tan ((than cau) or (khan cap))*.