Perhaps you should try some spelling variations:
sach tham » sach nha
danh dien » dinh dien, danh kien, danh lien
cau tren » cu tren, dau tren, ca tren
cuu tre » cua tre, cau treo
va danh » va dinh, va dan, va hanh
te sach » toc sach
nang xa » lang xa, nang ma, mang xa
hieu va » lieu va, hieu qua
du va » dau va, tu va, su va

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 tham ((nang xa) or (nang x)) hoi. hieu va cac du va danh dien ((cuu tre) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tham ((nang xa) OR (nang x)) hoi. hieu va cac du va danh dien ((cuu tre) OR (cau tren)).
• Adding a wildcard symbol may retrieve word variants: te sach tham ((nang xa) or (nang x)) hoi. hieu va cac du va danh dien ((cuu tre) or (cau tren))*.