Perhaps you should try some spelling variations:
thien van » thi van
toc sach » hoc sach, doc sach, thuoc sach
van cham » van chat, van tham, va cham
cham tuc » nham thuc, pham thuc, tham thuc
kinh dat » dinh dat, kinh dao, chinh dat
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
va kinh » va tinh, qua kinh
dat cua » dai cua, day cua, mat cua
cua tre » cua te, cuu tre, cua triet
tuc va » thuc va, truc va, tuc xa

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 y ((nang xa) OR (nang ma)) hoi. thien van cham tuc va kinh dat cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach y ((nang xa) OR (nang ma)) hoi. thien van cham tuc va kinh dat cua tre".
• Adding a wildcard symbol may retrieve word variants: toc sach y ((nang xa) OR (nang ma)) hoi. thien van cham tuc va kinh dat cua tre*.