Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
thanh ca » thanh cha, thanh cac, thanh ha
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
van cam » van nam, van lam, van cau
thuc va » thuc vat, thuc dan, thuc day
truc va » thuc vat, trung va
ca cua » co cua
cua te » cua tu

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 ky lang xa hoi. hieu van cam ((thuc va) or (truc va)) thanh ca cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky lang xa hoi. hieu van cam ((thuc va) OR (truc va)) thanh ca cua te.
• Adding a wildcard symbol may retrieve word variants: so sach ky lang xa hoi. hieu van cam ((thuc va) or (truc va)) thanh ca cua te*.