Perhaps you should try some spelling variations:
thanh trung » thanh tung
thiet tach » chiet tach, thien hach, thuat tach
trung tuan » trung thanh, trung tam, tran tuan
hoc thiet » hoc thieu, hoc thuyet, hoc hien
hang cong » dang cong, hang nong, bang cong
ban thanh » ban hanh, ban hang
san than » sang than, san thanh, ban than

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

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