Perhaps you should try some spelling variations:
thien anh » thien danh, thien thanh, thien chanh
hien hanh » dieu hanh
dong cong » duong cong, dung cong, dang cong
tien anh » tieng anh, tien manh, dien anh
anh bang » anh hoang, anh quang, tinh bang
bang cua » ban cua, mang cua, hang cua
cua dong » chua dong, cua cong, cua dang
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap

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 anh) or (tien anh))) or (hien hanh)) - anh bang cua dong cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((thien anh) OR (tien anh))) OR (hien hanh)) - anh bang cua dong cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((((thien anh) or (tien anh))) or (hien hanh)) - anh bang cua dong cong tac toan cau*.