Perhaps you should try some spelling variations:
quan duong » tuan duong, quan dong, qua duong
thieu xanh » chieu xanh, hieu manh, thien danh
thien anh » thien danh, tien anh, thien thanh
tinh nang » trinh nang, tin nang, tich nang
quan dung » quang dung, qua dung, quan dong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van ban

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)) - tinh nang ((quan dung) OR (quan duong)) cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - tinh nang ((quan dung) OR (quan duong)) cong tan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (thien anh)) - tinh nang ((quan dung) OR (quan duong)) cong tan toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (thien anh)) - tinh nang ((quan dung) OR (quan duong)) cong tan toan ban*.