Perhaps you should try some spelling variations:
trinh vat » trinh van, trinh luat, sinh vat
va trinh » van trinh, va tinh, lap trinh
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
can ban » van ban, toan ban
y nang » ky nang, ly nang, v nang
ve can » ve canh, ve cac, ve ban
vat va » dat va
x hoi » xa hoi, o hoi, x ho
thiet » thieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y nang x hoi. hieu ve can ban va trinh vat va thiet~.
• Adding a wildcard symbol may retrieve word variants: su sach y nang x hoi. hieu ve can ban va trinh vat va thiet*.