Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
truong cao » truong dai
nhung long » nhung cong, nhung lang, hung long
hien xanh » hien nhanh, chieu xanh, hien khanh
hien hanh » dieu hanh
long tinh » cong tinh, trong tinh, luong tin
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien xanh) or (hien hanh)) - hanh ((trung tuan) or (truong cao)) nhung long tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien hanh)) - hanh ((trung tuan) OR (truong cao)) nhung long tinh toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien hanh)) - hanh ((trung tuan) or (truong cao)) nhung long tinh toan ban*.