Perhaps you should try some spelling variations:
thien van » thi van
benh ve » benh va, benh vien, benh viem
duc vao » dua vao, duc dao, duc van
van cam » van nam, van lam, van cau
sach ty » sach y, sach thu, xach tay
sach tu » sach thu, cach tu, sach uu
cua tre » cua te, cuu tre, cua triet
hang x » nang x, hoang xa, chang xu
ve cua » le cua, de cua, te 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: tu ((sach ty) OR (sach tu)) hang x hoi. thien van cam ((duc va) or (duc vao)) benh ve cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sach tu)) hang x hoi. thien van cam ((duc va) OR (duc vao)) benh ve cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ty) OR (sach tu)) hang x hoi. thien van cam ((duc va) or (duc vao)) benh ve cua tre*".