Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, thong cong, nhung don
hoc thien » hoc hien, hoc thieu, hoc thiet
trung cua » truong cua, trung cap, dung cua
hang cong » dang cong, hang nong, bang cong
doan phan » doanh phan, toan phan, dan 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 thien hach - thanh ((trung cua) OR (trung tuan)) ((nhung cong) or (hang cong)) doan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - thanh ((trung cua) OR (trung tuan)) ((nhung cong) OR (hang cong)) doan phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien hach - thanh ((trung cua) OR (trung tuan)) ((nhung cong) or (hang cong)) doan phan cau".
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - thanh ((trung cua) OR (trung tuan)) ((nhung cong) or (hang cong)) doan phan cau*.