Perhaps you should try some spelling variations:
trinh quan » tinh quang, trinh luat, trinh han
hanh trinh » canh tranh, hanh chinh
chau tinh » cuu tinh, ha tinh, cua tinh
quan tong » quan trong, quan dong, quan long
tong cong » trong cong, cong cong, dung cong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van 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: chao ((dieu hanh) or (chau tinh)) - hanh trinh quan tong cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao ((dieu hanh) OR (chau tinh)) - hanh trinh quan tong cong tan toan cau.
• Adding a wildcard symbol may retrieve word variants: chao ((dieu hanh) or (chau tinh)) - hanh trinh quan tong cong tan toan cau*.