Perhaps you should try some spelling variations:
cham quoc » chuan quoc, han quoc, cham soc
ban xanh » ban hanh, ban anh, ban banh
quoc ban » quoc bao, quoc lan, quoc quan
hieu ve » hieu va, hieu van
xanh de » hanh de, xanh di, thanh de
ve cham » va cham, ve chat, vu cham
cua tre » cua te, cuu tre, cua triet
dai hoi » dai hoc, dai hai, dai moi
mai hoi » mai khoi, lai hoi, mai doi
sac ky » cac ky, sai ky
ma hoi » xa hoi, ma hoa, me hoi
de cua » le cua, te cua, dieu cua
tu sac » tu sach, tu cac, tu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang ((ma hoi) or (((mai hoi) OR (dai hoi)))). hieu ve cham quoc ban xanh de cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ((ma hoi) OR (((mai hoi) OR (dai hoi)))). hieu ve cham quoc ban xanh de cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang ((ma hoi) or (((mai hoi) OR (dai hoi)))). hieu ve cham quoc ban xanh de cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ((ma hoi) or (((mai hoi) OR (dai hoi)))). hieu ve cham quoc ban xanh de cua tre*.