Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
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
hieu ve » hieu va, hieu van
tang ma » mang may, tang van
ky tang » ky nang, ky dang, kho tang
xuc va » duc va, luc va, xac va
ve cam » ve cham, ve cac, va cam
tuc va » truc va, tuc xa, duc va
ma hoi » mai hoi, xa hoi, ma hoa

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 hoi. hieu ve cam ((xuc va) or (((tuc 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 hoi. hieu ve cam ((xuc va) OR (((tuc 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 hoi. hieu ve cam ((xuc va) or (((tuc va) OR (thuc va)))) thanh lap cua tre*".