Perhaps you should try some spelling variations:
tranh quang » tran quang, trinh quang, tinh quang
quang trong » quang truong, quang trung, quan trong
hanh tranh » canh tranh, hanh trinh, hanh trang
hien xanh » hien hanh, hien nhanh, chieu xanh
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 xanh - hanh tranh quang trong cong tac toan cau~.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh tranh quang trong cong tac toan cau*.