Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
canh trinh » canh tranh, hanh trinh, canh tinh
quang dung » quang trung, ung dung, cuong dung
hoc thieu » toc thieu, hoc hien
quan dung » quan duong, qua dung, quan dong
cong danh » cuong danh, cong thanh, cong khanh
cong dan » cong san, cong tan, huong dan
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 - canh trinh ((quan dung) or (quang dung)) ((cong danh) OR (cong dan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh trinh ((quan dung) OR (quang dung)) ((cong danh) OR (cong dan)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - canh trinh ((quan dung) or (quang dung)) ((cong danh) OR (cong dan)) toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh trinh ((quan dung) or (quang dung)) ((cong danh) OR (cong dan)) toan cau*.