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
hang cong » dang cong, hang nong, bang cong
dan thanh » dang thanh, danh thanh, ban thanh
thanh cac » hanh cac, thanh bac, thanh ca
dung cua » dung luan, dung cho

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 ((dung cua) or (trung tuan)) ((nhung cong) or (hang cong)) dan thanh cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - thanh ((dung cua) OR (trung tuan)) ((nhung cong) OR (hang cong)) dan thanh cac.
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - thanh ((dung cua) or (trung tuan)) ((nhung cong) or (hang cong)) dan thanh cac*.