Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, thong cong, hang cong
theo sach » thuoc sach, te sach, theo lich
hieu cach » hieu cac, chieu sach, hieu ca
hang nong » thang long, han tong
sang phan » sang than, nang phan, san phan
phan cau » phan dau, phan cac, phan tu

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

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