Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
cua thuong » cua truong, cua phuong, ca thuong
cua duong » cua dong, cua huong, qua duong
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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: theo chu xanh - hanh trinh ((cua duong) or (cua thuong)) cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - hanh trinh ((cua duong) OR (cua thuong)) cong tac toan cao*.