Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
sang tao » hang tai
nam danh » nam dinh, nam dan
xa danh » va danh, dia danh, van danh
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
ve pham » vi pham, v pham, ve phan
hieu ve » hieu va, hieu van
tao hai » tao dai, tao tai, tai hai
ky sang » ky nang, ky dang, ky tang
vi cua » vai cua, di cua
cua te » cua tu

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 ky sang tao hai. hieu ve pham thuc ((xa danh) OR (nam danh)) vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky sang tao hai. hieu ve pham thuc ((xa danh) OR (nam danh)) vi cua te".
• Adding a wildcard symbol may retrieve word variants: su sach ky sang tao hai. hieu ve pham thuc ((xa danh) OR (nam danh)) vi cua te*.