Perhaps you should try some spelling variations:
cua thuong » cua truong, cua phuong, ca thuong
hien manh » hien hanh, tien manh, hieu manh
manh hung » anh huong
hung cua » huong cua, chung cua, khung cua
cong tan » cong tac, cong san, cong thanh
toan tap » toan ban
toan cao » 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 hien manh - manh hung cua thuong ((cong tan) or (cong trinh)) ((toan tap) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien manh - manh hung cua thuong ((cong tan) OR (cong trinh)) ((toan tap) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: hoc hien manh - manh hung cua thuong ((cong tan) or (cong trinh)) ((toan tap) or (toan cao))*.