Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
su sach » so sach, vu sach
ky sang » ky nang, ky dang, duy sang
ky tang » ky nang, ky dang, kho tang
tao hai » tao dai, tao tai, tai hai
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
thuc xa » thuc xay, tuc xa, thuc va
xa danh » va danh, dia danh, nam danh
danh vi » hanh vi, dinh vi, danh di
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) OR (ky tang)) tao hai. hieu ve pham thuc xa danh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ky sang) OR (ky tang)) tao hai. hieu ve pham thuc xa danh vi cua te".
• Adding a wildcard symbol may retrieve word variants: su sach ((ky sang) OR (ky tang)) tao hai. hieu ve pham thuc xa danh vi cua te*.