Perhaps you should try some spelling variations:
sach tham » sach nha
cau treo » cau theo, cau tren, cau triet
te sach » toc sach
long ha » dong ha, cong ha, dong hoa
hieu va » lieu va, hieu qua
va xanh » va danh, va hanh, va anh
xanh di » danh di, vanh dai, xanh tai
cac tu » cac thu, cach tu, cac du
di cau » da cau, diem cau

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 ((lang ha) OR (long ha)) hoi. hieu va cac tu va xanh di cau treo~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tham ((lang ha) OR (long ha)) hoi. hieu va cac tu va xanh di cau treo".
• Adding a wildcard symbol may retrieve word variants: te sach tham ((lang ha) OR (long ha)) hoi. hieu va cac tu va xanh di cau treo*.