Perhaps you should try some spelling variations:
truong quan » trong quan, thong quan, luong quan
thieu xanh » chieu xanh, hieu manh, thien anh
trung quan » trong quan, trung tuan, truong quang
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
cong san » cong tac
toan cau » toan ban, toan tap, toan tai
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 - hanh ((trung quan) or (truong quan)) nhung cong san ((toan cau) OR (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh ((trung quan) OR (truong quan)) nhung cong san ((toan cau) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh ((trung quan) or (truong quan)) nhung cong san ((toan cau) OR (toan cao))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh ((trung quan) or (truong quan)) nhung cong san ((toan cau) OR (toan cao))*.