Perhaps you should try some spelling variations:
tham thuc » nham thuc, pham thuc, tam thuc
thien van » thi van
cham tuc » nham thuc, pham thuc, cham soc
nang dai » nang dau, nang tai, lang dai
dai hoi » dai hoc, dai hai, dai moi
sach ky » sac ky, sach ty, sach kem
va danh » va dinh, va dan, va hanh
danh di » danh du, xanh di, danh dien
cua tre » cua te, cuu tre, cua triet
di cua » dai cua, doi cua, de cua

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 dai hoi. thien van ((cham tuc) or (tham thuc)) va danh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((sach ky) OR (sach y)) nang dai hoi. thien van ((cham tuc) OR (tham thuc)) va danh di cua tre.
• Adding a wildcard symbol may retrieve word variants: toc ((sach ky) or (sach y)) nang dai hoi. thien van ((cham tuc) or (tham thuc)) va danh di cua tre*.