Perhaps you should try some spelling variations:
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
thinh chat » tinh chat, trinh chat, thinh phat
tinh tinh » trinh tinh, tinh ninh, tinh binh
tan thinh » van thinh, tien thinh, tai chinh
cong tan » cong tac, cong san, cong thanh
tinh va » tich va, trinh van, trinh vat

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