Perhaps you should try some spelling variations:
danh hoi » danh hoa, dan hoi, danh hoc
cua tre » cua te, cuu tre, cua triet
hoi cua » hoi chuc
hieu ve » hieu va, hieu van
dai hoi » dai hoc, dai hai, dai moi
mai hoi » mai khoi, lai hoi, mai doi
ky tang » ky nang, ky dang, kho tang
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, xac va
luc va » duc va, tuc va, loc va
vu sac » vu sach, vu san, va sac

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 tang ((mai hoi) OR (dai hoi)). hieu ve cam ((xuc va) or (luc va)) danh hoi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky tang ((mai hoi) OR (dai hoi)). hieu ve cam ((xuc va) OR (luc va)) danh hoi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sac ky tang ((mai hoi) OR (dai hoi)). hieu ve cam ((xuc va) or (luc va)) danh hoi cua tre".
• Adding a wildcard symbol may retrieve word variants: vu sac ky tang ((mai hoi) OR (dai hoi)). hieu ve cam ((xuc va) or (luc va)) danh hoi cua tre*.