Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
truong cua » truong ca, truong quan, huong cua
truong cao » truong dai
hien xanh » hien hanh, chieu xanh, hien khanh
dang cong » dung cong
cong hach » cong sach, cong thanh, cong khanh
hach toan » thanh toan, manh toan
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 nhanh)) - thanh ((truong cua) OR (truong cao)) dang cong hach toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien nhanh)) - thanh ((truong cua) OR (truong cao)) dang cong hach toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) or (hien nhanh)) - thanh ((truong cua) OR (truong cao)) dang cong hach toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien nhanh)) - thanh ((truong cua) OR (truong cao)) dang cong hach toan ban*.