Perhaps you should try some spelling variations:
tan hanh » tan thanh, tang hanh, toan hanh
ngoc tan » ngoc tuan, ngoc toan, ngoc lan
va hoang » van hoang, vao hoang, va hang
co sach » bo sach, cuon sach, hoc sach
sach ky » sac ky, sach y, sach ty
hanh di » hanh vi, hanh de, hang di
dong ha » dong hoa, dong va, dong hoc
dang ha » dung ha, lang ha, tang ha
dang xa » dang xay, lang xa, dang va
di cua » dai cua, doi cua, de cua
cua tu » cua tuc, cua su, cua cu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: co sach ky ((dang xa) or (((dang ha) OR (dong ha)))) hoi. lieu va hoang ngoc tan hanh di cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co sach ky ((dang xa) OR (((dang ha) OR (dong ha)))) hoi. lieu va hoang ngoc tan hanh di cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "co sach ky ((dang xa) or (((dang ha) OR (dong ha)))) hoi. lieu va hoang ngoc tan hanh di cua tu*".