Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
trung dap » trung cap, trung dai, trung dam
ung cong » dung cong, luong cong, duong cong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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 - hanh ((trung dap) or (trung tam)) ung cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh ((trung dap) OR (trung tam)) ung cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh ((trung dap) or (trung tam)) ung cong dan toan cau*.