Perhaps you should try some spelling variations:
hien manh » hien hanh, hieu manh, hien nhanh
tien manh » tien anh, tien thanh, tieng anh
hanh tram » hanh tam, hanh trang, thanh tran
dang cong » dung cong
tram van » tran van, tam van, trang van
van dang » van dong, van dung, van nang
van toan » van tuan, van tan, van thanh

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 manh) or (tien manh)) - hanh tram van dang cong ((xuan toan) or (van toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien manh) OR (tien manh)) - hanh tram van dang cong ((xuan toan) OR (van toan)) cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien manh) or (tien manh)) - hanh tram van dang cong ((xuan toan) or (van toan)) cao*.