Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
bang duong » bang suong, bang tuong, tang duong
hien hanh » dieu hanh
duong van » duong va, luong va, dang van
trang va » tran van, hang va
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh cac
va bang » va nang, va lang, va ban

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 hanh - hanh trang va bang duong van ((than cau) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - hanh trang va bang duong van ((than cau) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - hanh trang va bang duong van ((than cau) or (than cap))*.