Perhaps you should try some spelling variations:
thien van » thi van
cham tuc » nham thuc, pham thuc, tham thuc
van cham » van chat, van tham, va cham
sach ky » sac ky, sach ty, sach kem
dau cua » dai cua, day cua, cau cua
dap dau » dan dau, dat dau, danh dau
cua tre » cua te, cuu tre, cua triet
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, lang xa, mang xa
tuc va » thuc va, truc va, tuc xa
va dap » va dao, va dau

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((sach ky) or (sach y)) ((nang xa) OR (nang ma)) hoi. thien van cham tuc va dap dau cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((sach ky) OR (sach y)) ((nang xa) OR (nang ma)) hoi. thien van cham tuc va dap dau cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((sach ky) or (sach y)) ((nang xa) OR (nang ma)) hoi. thien van cham tuc va dap dau cua tre".
• Adding a wildcard symbol may retrieve word variants: toc ((sach ky) or (sach y)) ((nang xa) OR (nang ma)) hoi. thien van cham tuc va dap dau cua tre*.