Perhaps you should try some spelling variations:
hanh trung » thanh trung, hanh trang, manh trung
nhung cong » dung cong, thong cong, hang cong
vien canh » bien canh, vien can, vien nganh
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
vien anh » viet anh, dien anh, tien anh
cong san » cong tac
tuan cau » toan cau, quan cau, thuan cam
tuan cu » tuan tu, quan cua, tuan thu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((vien anh) or (vien canh)) - hanh trung cua nhung cong san ((tuan cau) OR (tuan cu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((vien anh) OR (vien canh)) - hanh trung cua nhung cong san ((tuan cau) OR (tuan cu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((vien anh) or (vien canh)) - hanh trung cua nhung cong san ((tuan cau) OR (tuan cu))".
• Adding a wildcard symbol may retrieve word variants: hoc ((vien anh) or (vien canh)) - hanh trung cua nhung cong san ((tuan cau) OR (tuan cu))*.