Perhaps you should try some spelling variations:
vien cac » vien bach, vien dai, vien da
tu bach » vu bach, tu cach, tu hach
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
dinh co » dinh cao, dinh so, dinh cu
va dinh » van dinh, va kinh, va tinh
co cua » con cua, ca cua, cong cua
tu bac » tu ban, tu cac, tu bat
ve cac » va cac
ma hoi » mai hoi, xa hoi, ma hoa
cua cu » cua chu, cua cau, cua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu bac) or (tu bach)) ky tang ma hoi. hieu ((ve cac) or (vien cac)) duc va dinh co cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu bac) OR (tu bach)) ky tang ma hoi. hieu ((ve cac) OR (vien cac)) duc va dinh co cua cu.
• Adding a wildcard symbol may retrieve word variants: ((tu bac) or (tu bach)) ky tang ma hoi. hieu ((ve cac) or (vien cac)) duc va dinh co cua cu*.