Perhaps you should try some spelling variations:
anh thuc » am thuc, dan thuc, anh tu
thuc day » thuc dan, thuc vat
day tinh » may tinh, dac tinh, dao tinh
so sach » so sanh, bo sach, co sach
hieu ve » hieu va, hieu van
tinh vi » trinh vi, tinh voi, tinh va
su tien » su kien, su hien, tu tieng
y xang » ty xang
xang x » nang x
ve anh » ve canh, ve hanh, le anh
x hoi » xa hoi, o hoi, x ho
vi su » va su, ve su, ki su

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 y xang x hoi. hieu ve anh thuc day tinh vi su tien~.
• Adding a wildcard symbol may retrieve word variants: so sach y xang x hoi. hieu ve anh thuc day tinh vi su tien*.