Perhaps you should try some spelling variations:
lai hoa » dai hoa, loai hoc
hieu so » thieu so
ky sang » ky nang, ky dang, ky tang
lai hoi » dai hoi, lai roi, mai hoi
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
vi cua » vai cua, di cua
so cao » so cap, o cao, do cao
tu bac » tu ban, tu bat, tu bai
cua te » cua tu
su va » su van, tu va

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 cac)) ky sang ((lai hoi) or (lai hoa)). hieu so cao su va danh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu bac) OR (tu cac)) ky sang ((lai hoi) OR (lai hoa)). hieu so cao su va danh vi cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu bac) or (tu cac)) ky sang ((lai hoi) or (lai hoa)). hieu so cao su va danh vi cua te*.