Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
hien khanh » hien hanh, dien khanh, thien chanh
hien nhanh » hien hanh, tien thanh, dien thanh
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
quan nhung » qua nhung, cua nhung, luan chung
nhung cong » dung cong, thong cong, hang cong
cong san » cong tac
san toan » van toan, dan toan, manh 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 khanh) OR (thien thanh))) or (hien nhanh)) - hanh trinh quan nhung cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((hien khanh) OR (thien thanh))) OR (hien nhanh)) - hanh trinh quan nhung cong san toan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((hien khanh) OR (thien thanh))) or (hien nhanh)) - hanh trinh quan nhung cong san toan cau*".