Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
danh sai » dung sai, danh bat, danh dau
va cham » va chat, va tham
sai cau » lai chau, mai chau, hai chau
va danh » va dinh, va dan, va hanh
thuc va » thuc vat, thuc dan, thuc day
su sach » so sach
vu sach » vu bach, vu khach
xang x » nang x
y xang » ty xang
ve cam » ve cham, ve cac, va cam
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: ((su sach) OR (vu sach)) y xang x hoi. hieu ((ve cam) or (va cham)) thuc va danh sai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) y xang x hoi. hieu ((ve cam) OR (va cham)) thuc va danh sai cau tren*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) y xang x hoi. hieu ((ve cam) or (va cham)) thuc va danh sai cau tren*".