Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
hieu van » hieu va, thien van, lieu va
sang tao » hang tai
danh di » danh du, xanh di, danh dien
danh vi » hanh vi, dinh vi, danh va
thuc xa » thuc xay, tuc xa, thuc va
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va
tao hai » tao dai, tao tai, tai hai
ky sang » ky nang, ky dang, ky tang
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) OR (hieu van)) pham thuc xa ((danh vi) or (danh di)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky sang tao hai. ((hieu ve) OR (hieu van)) pham thuc xa ((danh vi) OR (danh di)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky sang tao hai. ((hieu ve) OR (hieu van)) pham thuc xa ((danh vi) or (danh di)) cua te".
• Adding a wildcard symbol may retrieve word variants: su sach ky sang tao hai. ((hieu ve) OR (hieu van)) pham thuc xa ((danh vi) or (danh di)) cua te*.