Perhaps you should try some spelling variations:
thuong dong » phuong dong, tuong dong, chuong dong
thanh tuong » thanh thuong, thanh tung, thanh huong
thien hach » thien thanh, hien hanh
cua thuong » cua truong, cua phuong, ca thuong
hoc thien » hoc hien, hoc thieu, hoc thiet
tuong cua » truong cua, huong cua, thong cua
dong tac » cong tac, dong tai, dong bac
toan cao » toan ban
toan tap » toan 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 thien hach - thanh tuong cua thuong dong tac ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - thanh tuong cua thuong dong tac ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - thanh tuong cua thuong dong tac ((toan cao) or (toan tap))*.