Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
thiet danh » thien danh, thien anh, thien dang
trung tuan » trung thanh, trung tam, tran tuan
hoc thiet » hoc thieu, hoc thuyet, hoc hien
truong ca » truong cao, truong va, trong ca
cong ban » cong bang, cong san, cong tan
phan cau » phan dau, phan cac, phan tu
than cap » khan cap, thanh lap, thanh cac

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 danh - thanh ((trung tuan) or (truong ca)) thuong cong ban ((phan cau) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thiet danh - thanh ((trung tuan) OR (truong ca)) thuong cong ban ((phan cau) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: hoc thiet danh - thanh ((trung tuan) or (truong ca)) thuong cong ban ((phan cau) or (than cap))*.