Perhaps you should try some spelling variations:
hien hanh » dieu hanh
khanh van » thanh van, khanh vinh, hanh va
quan hang » quan hoang, quan lang, quan hanh
hang cong » dang cong, hang nong, bang cong
hien anh » thien anh, dien anh, hien nhanh
tien anh » tieng anh, tien manh, dien anh
van quan » van ban
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, 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 anh) or (tien anh))) or (hien hanh)) - khanh van quan hang cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((hien anh) OR (tien anh))) OR (hien hanh)) - khanh van quan hang cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((((hien anh) or (tien anh))) or (hien hanh)) - khanh van quan hang cong dan toan cau*.