Perhaps you should try some spelling variations:
mai khoi » mai khoa, tai khoa, cac khoi
danh doi » danh di, thanh doi, dung doi
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
mai hoi » dai hoi, lai hoi, mai doi
hieu ve » hieu va, hieu van
cac tuc » cac toc, cac tu, cac tac
xa danh » va danh, dia danh, nam danh
doi cua » dai cua, hoi cua
ve cac » va cac, vien cac
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky nang ((mai hoi) or (mai khoi)). hieu ve cac tuc xa danh doi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang ((mai hoi) OR (mai khoi)). hieu ve cac tuc xa danh doi cua te.
• Adding a wildcard symbol may retrieve word variants: so sach ky nang ((mai hoi) or (mai khoi)). hieu ve cac tuc xa danh doi cua te*.