Perhaps you should try some spelling variations:
tham nuoc » thay nuoc, thoat nuoc, nha nuoc
van tham » van thanh, van tuan, van chat
lieu van » lieu va, hieu van, sieu van
va danh » va dinh, va hanh, dia danh
su sach » so sach, vu sach
nang ma » tang ma, nang cao, mang may
sang ma » tang ma, sang tao, mang may
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: su sach y ((sang ma) or (nang ma)) hoi. lieu van tham nuoc ((va danh) OR (va dan)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y ((sang ma) OR (nang ma)) hoi. lieu van tham nuoc ((va danh) OR (va dan)) di cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y ((sang ma) or (nang ma)) hoi. lieu van tham nuoc ((va danh) OR (va dan)) di cua tre".
• Adding a wildcard symbol may retrieve word variants: su sach y ((sang ma) or (nang ma)) hoi. lieu van tham nuoc ((va danh) OR (va dan)) di cua tre*.