Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
nhieu tang » chieu sang, hieu lang, nhiet nang
trung tuan » trung thanh, trung tam, tran tuan
tuan tong » toan tong, thuan trong, toan thong
thong ban » thong van, trong ban, thong dan
thong bai » thong tai, nhung bai, thong xay
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 ((chieu sach) or (nhieu tang)) - thanh trung tuan tong ((thong ban) OR (thong bai)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (nhieu tang)) - thanh trung tuan tong ((thong ban) OR (thong bai)) than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (nhieu tang)) - thanh trung tuan tong ((thong ban) OR (thong bai)) than cau".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (nhieu tang)) - thanh trung tuan tong ((thong ban) OR (thong bai)) than cau*.