Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
tra tuan » tran tuan, tri tuan, ta tuan
tra quan » tran quang, toan quan, tac quan
tri quan » trinh quan, hai quan, mai quan
cong tan » cong tac, cong san, cong thanh
tran cau » tran chau, toan cau, ran cau

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 - thanh ((tra tuan) or (((tra quan) or (tri quan)))) dung cong tan tran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((tra tuan) OR (((tra quan) OR (tri quan)))) dung cong tan tran cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((tra tuan) or (((tra quan) or (tri quan)))) dung cong tan tran cau*.