Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
ban banh » ban hanh, ban anh, ban danh
ban xanh » ban hanh, ban anh, ban danh
cuu tre » cua tre, cau tren, cau treo
doi cuu » doi cua, doi cuoc
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
ky sang » ky nang, ky dang, ky tang
sac ky » cac ky, sai ky
ma hoi » mai hoi, ma hoa, me hoi
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 sang ((ma hoi) OR (xa hoi)). hieu ve cham xuc ((ban xanh) or (ban banh)) doi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky sang ((ma hoi) OR (xa hoi)). hieu ve cham xuc ((ban xanh) OR (ban banh)) doi cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky sang ((ma hoi) OR (xa hoi)). hieu ve cham xuc ((ban xanh) or (ban banh)) doi cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky sang ((ma hoi) OR (xa hoi)). hieu ve cham xuc ((ban xanh) or (ban banh)) doi cuu tre*.