Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, tu cach
danh va » doanh va, hanh va, anh va
va danh » va dinh, va dan, va hanh
thuc va » thuc vat, thuc dan, thuc day
va cham » va chat, va tham
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
te sach » toc sach
su tien » su kien, su hien, tu tieng

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (te sach)) ky lang xa hoi. hieu ((va cham) or (va cac)) thuc va danh va su tien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky lang xa hoi. hieu ((va cham) OR (va cac)) thuc va danh va su tien.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky lang xa hoi. hieu ((va cham) or (va cac)) thuc va danh va su tien*.