Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu ve » hieu va, hieu van
danh vi » hanh vi, dinh vi, danh va
danh di » danh du, xanh di, danh dien
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, me hoi
ve dat » de dat, va dat, ve dao
nuoc » quoc, duoc, ngoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sac ky nang ((ma hoi) OR (ma hoa)). hieu ve dat nuoc va ((danh vi) or (danh di)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky nang ((ma hoi) OR (ma hoa)). hieu ve dat nuoc va ((danh vi) OR (danh di)) cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sac ky nang ((ma hoi) OR (ma hoa)). hieu ve dat nuoc va ((danh vi) or (danh di)) cua triet*".