Perhaps you should try some spelling variations:
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
trinh chat » tinh chat, trinh luat, trinh han
tinh binh » ninh binh, tinh ninh
hang cong » dang cong, hang nong, bang cong
tan trinh » tan thinh, tao trinh, dan trinh
binh van » dinh van, binh dan, binh tan
van hang » van khang, van hoang, van thang
cong tan » cong tac, cong san, cong thanh

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 (chieu xanh)) - tinh binh van hang cong tan trinh chat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chieu xanh)) - tinh binh van hang cong tan trinh chat*.