Perhaps you should try some spelling variations:
thien van » thi van
danh dau » lanh dao, hang dau, danh tu
dinh dau » dinh dat, dinh du, dinh dao
tham tuc » tham thuc, thai tuc, nham thuc
van tham » van thanh, van tuan, van chat
lang xa » lang ha, dang xay, lang van
sach ky » sac ky, sach ty, sach kem
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: toc ((sach ky) or (sach y)) lang xa hoi. thien van tham tuc xa ((dinh dau) OR (danh dau)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((sach ky) OR (sach y)) lang xa hoi. thien van tham tuc xa ((dinh dau) OR (danh dau)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((sach ky) or (sach y)) lang xa hoi. thien van tham tuc xa ((dinh dau) OR (danh dau)) cua tre".
• Adding a wildcard symbol may retrieve word variants: toc ((sach ky) or (sach y)) lang xa hoi. thien van tham tuc xa ((dinh dau) OR (danh dau)) cua tre*.