Perhaps you should try some spelling variations:
sach ty » sach y, sach thu, xach tay
sach tu » sach thu, cach tu, sach uu
danh di » danh du, xanh di, danh dien
cua tre » cua te, cuu tre, cua triet
qua ca » qua cac, qua cua, qua cai
suc va » tuc va, luc va, soc va
di cua » dai cua, doi cua, de cua
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: thu ((sach ty) or (sach tu)) nang x hoi. hieu qua ca ((suc va) or (duc va)) danh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach ty) OR (sach tu)) nang x hoi. hieu qua ca ((suc va) OR (duc va)) danh di cua tre.
• Adding a wildcard symbol may retrieve word variants: thu ((sach ty) or (sach tu)) nang x hoi. hieu qua ca ((suc va) or (duc va)) danh di cua tre*.