Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
hanh hai » thanh hai, nhanh hai, hang hai
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
xuc ban » duc ban, quoc ban, xuat ban
cuc ban » cua ban, cac ban, cuu ban
su sach » so sach, vu sach
tu sach » thu sach, te sach, tu cach
hai va » hai van, thai va, hoi va
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (su sach)) ky nang x hoi. hieu ve cham ((xuc ban) or (cuc ban)) hanh hai va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky nang x hoi. hieu ve cham ((xuc ban) OR (cuc ban)) hanh hai va triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky nang x hoi. hieu ve cham ((xuc ban) or (cuc ban)) hanh hai va triet*.