Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
dau tieng » cau tieng, day tieng, mau tieng
dau tien » van tien
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
va hanh » van hanh, va thanh, va danh
hanh de » hanh ve, hanh kem
va cau » van cau, va dau, va cao
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ky lang xa hoi. lieu ((va cau) or (va cac)) luc va hanh de ((dau tieng) OR (dau tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ky lang xa hoi. lieu ((va cau) OR (va cac)) luc va hanh de ((dau tieng) OR (dau tien))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ky lang xa hoi. lieu ((va cau) or (va cac)) luc va hanh de ((dau tieng) OR (dau tien))*".