Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
danh sai » dung sai, danh bat, danh dau
va trien » va truyen, va thiet, va tuyen
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
ve pham » vi pham, ve phan, ve phat
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
v pham » vi pham, d pham
sai va » mai va, dai va, hai va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sach ky lang xa hoi. hieu ((ve pham) OR (v pham)) thuc va danh sai va trien~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sach ky lang xa hoi. hieu ((ve pham) OR (v pham)) thuc va danh sai va trien".
• Adding a wildcard symbol may retrieve word variants: hoc sach ky lang xa hoi. hieu ((ve pham) OR (v pham)) thuc va danh sai va trien*.