Perhaps you should try some spelling variations:
hanh trung » thanh trung, hanh trang, manh trung
thang long » thanh cong
hien hanh » dieu hanh
trung cua » truong cua, trung tuan, trung cap
cua thang » cua hang, cua thanh, xua thang
manh toan » thanh toan, anh tuan, tinh toan
hien anh » thien anh, dien anh, tien anh
van than » van thanh, van thang, van tuan

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