Perhaps you should try some spelling variations:
thien danh » thien anh, thien dang, thien thanh
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
tranh chap » tranh cua, trinh chat
tinh dinh » trinh dinh, tinh ninh, tinh binh
tap tranh » tap thanh, lap trinh, tap toan
cong tap » cuong tap, cong tac, cong tan
dinh va » dinh van, dinh ve, tinh va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien danh) or (chieu xanh)) - tinh dinh va nhung cong tap tranh chap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien danh) OR (chieu xanh)) - tinh dinh va nhung cong tap tranh chap*.