Perhaps you should try some spelling variations:
doanh cua » doanh luan
hang cong » dang cong, hang nong, bang cong
hien anh » hien hanh, thien anh, dien anh
manh cua » ban cua
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh cac

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 - hanh ((manh cua) OR (doanh cua)) hang cong dan ((than cau) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien anh - hanh ((manh cua) OR (doanh cua)) hang cong dan ((than cau) OR (than cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien anh - hanh ((manh cua) OR (doanh cua)) hang cong dan ((than cau) or (than cap))".
• Adding a wildcard symbol may retrieve word variants: hoc hien anh - hanh ((manh cua) OR (doanh cua)) hang cong dan ((than cau) or (than cap))*.