Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
chieu sach » chinh sach, chiet tach, chieu sang
thinh chat » tinh chat, trinh chat, thinh phat
tinh binh » ninh binh, tinh ninh
hang cong » dang cong, hang nong, bang cong
van thinh » van thanh, van chinh, van minh
binh van » dinh van, binh dan, binh tan
van hang » van khang, van hoang, van thang
cong van » cong vang, cong san, song van

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