Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
danh doi » danh di, thanh doi, dung doi
cac tuc » cac toc, cac tu, cac tac
cua tre » cua te, cuu tre, cua triet
xa danh » va danh, dia danh, nam danh
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
ma hoi » mai hoi, ma hoa, me hoi
ve cac » va cac, vien cac

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

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