Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu sach » chieu sach, thien hach, hieu cach
trung tuan » trung thanh, trung tam, tran tuan
thanh than » thanh thanh, thanh thang, thanh toan
dang cong » dung cong
hang cong » hang nong, bang cong, thanh cong
than cau » toan cau, phan cau, than cap
hieu ca » hieu cac, hieu cua, hieu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu sach) or (hieu ca)) - thanh trung tuan ((dang cong) or (hang cong)) thanh than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu sach) OR (hieu ca)) - thanh trung tuan ((dang cong) OR (hang cong)) thanh than cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu sach) or (hieu ca)) - thanh trung tuan ((dang cong) or (hang cong)) thanh than cau*.