Perhaps you should try some spelling variations:
khai tuc » thai tuc, khai thac, khai tuan
hanh van » thanh van, khanh van, hanh va
cau theo » cau thi, cau tao
mai hoi » mai khoi, dai hoi, lai hoi
va khai » van khai, va khao, va kha
va hanh » van hanh, va thanh, va danh
van cau » van dau, van hau, van chat
su hoi » su choi, su hai, lu hoi
ma hoi » xa hoi, me hoi, va hoi
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: su hoi ky nang ((((ma hoi) or (ma hoa))) or (mai hoi)). lieu va khai tuc va hanh van cau theo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su hoi ky nang ((((ma hoi) OR (ma hoa))) OR (mai hoi)). lieu va khai tuc va hanh van cau theo.
• Adding a wildcard symbol may retrieve word variants: su hoi ky nang ((((ma hoi) or (ma hoa))) or (mai hoi)). lieu va khai tuc va hanh van cau theo*.