Perhaps you should try some spelling variations:
manh trung » manh tung, thanh trung, manh hung
chieu sach » chinh sach, chiet tach, chieu sang
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, thong cong, nhung don
hieu lang » chieu sang, hieu quang, nhieu tang
hang cong » dang cong, hang nong, bang cong
van thang » van thanh, van khang, van hang
thang ban » hang ban, tang ban, thanh ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu sach) or (hieu lang)) - manh trung tuan ((nhung cong) OR (hang cong)) van thang ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (hieu lang)) - manh trung tuan ((nhung cong) OR (hang cong)) van thang ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sach) or (hieu lang)) - manh trung tuan ((nhung cong) OR (hang cong)) van thang ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (hieu lang)) - manh trung tuan ((nhung cong) OR (hang cong)) van thang ban*.