Perhaps you should try some spelling variations:
tham doc » than doc, tham do, tham nuoc
va danh » va dinh, va hanh, dia danh
va tham » van tham, va cham, va thanh
te sach » toc sach
tang ma » tang van
cua tre » cua te, cuu tre, cua triet
va dan » ca dan, va dao, va dau
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: te sach y ((tang ma) or (mang may)) hoi. lieu va tham doc ((va danh) OR (va dan)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((tang ma) OR (mang may)) hoi. lieu va tham doc ((va danh) OR (va dan)) di cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((tang ma) or (mang may)) hoi. lieu va tham doc ((va danh) OR (va dan)) di cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach y ((tang ma) or (mang may)) hoi. lieu va tham doc ((va danh) OR (va dan)) di cua tre*.