Perhaps you should try some spelling variations:
thu hien » thuc hien, thi hien, thua thien
dang tay » dang xay, dung tay, dan tay
van hanh » van thanh, ban hanh, van anh
su hien » su kien, su tien, nhu hien
hanh ve » hanh vi, hanh va, hanh kem
xuc van » duc van, luc van, vuc van
tu sach » thu sach, su sach, te sach
sach vu » sach va, sach tu, sach uu
tay hoi » tay ho, tao hoi, tay thai
vu dang » su dang, vu quang, cua dang
va cao » va cac, va co, va dao

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 vu dang tay hoi. hieu ((va cao) or (ca dao)) xuc van hanh ve ((su hien) OR (thu hien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach vu dang tay hoi. hieu ((va cao) OR (ca dao)) xuc van hanh ve ((su hien) OR (thu hien)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach vu dang tay hoi. hieu ((va cao) or (ca dao)) xuc van hanh ve ((su hien) OR (thu hien))".
• Adding a wildcard symbol may retrieve word variants: tu sach vu dang tay hoi. hieu ((va cao) or (ca dao)) xuc van hanh ve ((su hien) OR (thu hien))*.