Perhaps you should try some spelling variations:
danh doi » danh di, thanh doi, dung doi
cua tre » cua te, cuu tre, cua triet
ky tang » ky nang, ky dang, kho tang
doi cua » dai cua, hoi cua, dong cua
hieu ve » hieu va, hieu van
luc va » duc va, tuc va, loc va
vu sac » vu sach, vu san, va sac
xuc va » duc va, tuc va, xac va
sac ky » cac ky, sai ky
ma hoi » mai hoi, ma hoa, me hoi
ve cam » ve cham, ve cac, va cam

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