Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hien nhanh » thien thanh, tien thanh, dien thanh
trinh tran » trinh trang, trinh toan, trinh tren
tran hoang » tran hong, quan hoang, tran quang
hoang cong » hang cong, hoang long, hoang vuong
hien xanh » chieu xanh, hien khanh, khien canh
hien hanh » dieu hanh
tran chau » tranh chap, tran huu
cong san » cong tac
san tran » tan tran, ban tran, dang tran

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) OR (hien nhanh))) or (hien hanh)) - hanh trinh tran hoang cong san tran chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((hien xanh) OR (hien nhanh))) OR (hien hanh)) - hanh trinh tran hoang cong san tran chau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((hien xanh) OR (hien nhanh))) or (hien hanh)) - hanh trinh tran hoang cong san tran chau*".