Perhaps you should try some spelling variations:
hien sang » hien trang, khien bang, chieu sang
hanh dung » thanh dung, anh dung, hanh dong
luan han » luan hoan, luan phan, luan van
han cong » phan cong, hang cong, hanh cong
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 hien sang - hanh dung luan han cong tac toan cau~.
• Adding a wildcard symbol may retrieve word variants: hoc hien sang - hanh dung luan han cong tac toan cau*.