Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien danh
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
thien anh » thien danh, tien anh, thien thanh
canh tinh » hanh tinh, manh tinh, canh tranh
tinh van » trinh van, dinh van, tinh va
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu xanh) or (thien anh)) - canh tinh van ((nhung cong) or (thong cong)) dan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - canh tinh van ((nhung cong) OR (thong cong)) dan phan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (thien anh)) - canh tinh van ((nhung cong) or (thong cong)) dan phan cau*.