Perhaps you should try some spelling variations:
cach thuc » anh thuc, cac thu
danh dien » dinh dien, danh kien, danh lien
tang van » dang van, hoang van, trong van
can thuc » dan thuc, van thuc, cay thuc
dien cua » dieu cua, dien cuc, dien cu
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
ky tang » ky nang, ky dang, kho tang
van hoc » van hoa
hieu va » lieu va, hieu qua
va danh » va dinh, va dan, va hanh
cua tre » cua te, cuu tre, cua triet

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 tang van hoc. hieu va ((cach thuc) or (can thuc)) va danh dien cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky tang van hoc. hieu va ((cach thuc) OR (can thuc)) va danh dien cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ky tang van hoc. hieu va ((cach thuc) or (can thuc)) va danh dien cua tre*.