Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
truong cua » truong ca, truong quan, truong cao
nhung cong » dung cong, thong cong, nhung don
doanh phan » doanh nhan, doan phan, doanh thanh
hoc thien » hoc hien, hoc thieu, hoc thiet
trung cua » trung tuan, trung cap, dung cua
hang cong » dang cong, hang nong, bang cong

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 (truong cua)) ((nhung cong) or (hang cong)) doanh phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - thanh ((trung cua) OR (truong cua)) ((nhung cong) OR (hang cong)) doanh phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien hach - thanh ((trung cua) OR (truong cua)) ((nhung cong) or (hang cong)) doanh phan tu".
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - thanh ((trung cua) OR (truong cua)) ((nhung cong) or (hang cong)) doanh phan tu*.