Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
duong quan » duong quang, luong quan, dung quan
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
thanh cac » hanh cac, thanh bac, thanh ca
cong ban » cong bang, cong san, cong tan
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 - hanh ((duong quan) or (duong qua)) dung cong ban ((phan cau) or (thanh cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh ((duong quan) OR (duong qua)) dung cong ban ((phan cau) OR (thanh cac)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh ((duong quan) or (duong qua)) dung cong ban ((phan cau) or (thanh cac))*.