Perhaps you should try some spelling variations:
thien danh » thien anh, thien dang, thien thanh
hanh trinh » canh tranh, hanh chinh
nhung cong » thong cong, hang cong, nhung don
hoc thien » hoc hien, hoc thieu, hoc thiet
trinh cua » tinh cua, trinh luat, trinh quan
dung cong » dung trong
van tuan » van quan, van ban, anh tuan

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien danh - hanh trinh cua ((nhung cong) OR (dung cong)) ((xuan toan) OR (van tuan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien danh - hanh trinh cua ((nhung cong) OR (dung cong)) ((xuan toan) or (van tuan)) cau~".
• Adding a wildcard symbol may retrieve word variants: hoc thien danh - hanh trinh cua ((nhung cong) OR (dung cong)) ((xuan toan) or (van tuan)) cau*.