Perhaps you should try some spelling variations:
lam truoc » lam thuoc, nam truoc, lam truong
truoc ban » truoc bang, thuoc ban, truc ban
nhanh vi » hanh vi, nhanh va, nhanh thi
cua viet » ca viet, cua vat, cua dieu
nang cau » nang cao, hang cau, nang dau
thanh va » thanh van, hanh va, thanh ha
so sach » so sanh, bo sach, co sach
hieu se » hieu ve, hieu so, hieu su
sach v » sach va, sach y, sach 2
se lam » so lam, si lam, de lam
v nang » va nang, vu nang, van nang

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 v nang cau hoi. hieu se lam truoc ban ((nhanh vi) or (thanh va)) ((cua viet) or (hoa viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach v nang cau hoi. hieu se lam truoc ban ((nhanh vi) OR (thanh va)) ((cua viet) OR (hoa viet)).
• Adding a wildcard symbol may retrieve word variants: so sach v nang cau hoi. hieu se lam truoc ban ((nhanh vi) or (thanh va)) ((cua viet) or (hoa viet))*.