Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
tang van » dang van, hoang van, trong van
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
lap cua » lai cua, tap cua, lam cua
thuc va » thuc vat, thuc dan, thuc day
cua tre » cua te, cuu tre, cua triet
tang ma » mang may
hieu ve » hieu va, hieu van
xuc va » duc va, tuc va, luc va
ve cam » ve cham, ve cac, va cam

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 ky ((tang ma) OR (tang van)) hoa. hieu ve cam ((xuc va) or (thuc va)) thanh lap cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((tang ma) OR (tang van)) hoa. hieu ve cam ((xuc va) OR (thuc va)) thanh lap cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky ((tang ma) OR (tang van)) hoa. hieu ve cam ((xuc va) or (thuc va)) thanh lap cua tre*".