Perhaps you should try some spelling variations:
thiet danh » thien danh, thien dang, tiep danh
thien anh » thien danh, tien anh, thien thanh
canh manh » lanh manh, canh tranh, cach mang
tong cong » trong cong, dung cong, dang cong
cong cong » cong dong, trong cong, dung cong
manh cua » doanh cua, ban cua
dat hang » dat khanh, dat quang, tat thang
hang dau » hang va, hang tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thiet danh) or (thien anh)) - canh manh cua ((tong cong) or (cong cong)) dat hang dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thiet danh) OR (thien anh)) - canh manh cua ((tong cong) OR (cong cong)) dat hang dau.
• Adding a wildcard symbol may retrieve word variants: hoc ((thiet danh) or (thien anh)) - canh manh cua ((tong cong) or (cong cong)) dat hang dau*.