Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien danh
thien anh » thien danh, tien anh, thien thanh
cong cong » cong dong, trong cong, dung cong
cong tinh » cong trinh, cong vinh, long tinh
dang cua » dong cua, mang cua, hang cua
dung cua » dung luan, dung cho
toan cau » toan cao, toan ban, toan tap

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)) - anh ((dang cua) or (dung cua)) cong cong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - anh ((dang cua) OR (dung cua)) cong cong tinh toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (thien anh)) - anh ((dang cua) or (dung cua)) cong cong tinh toan cau*.