Perhaps you should try some spelling variations:
qua thanh » quan thanh, qua than, quang thanh
cua thanh » gia thanh, va thanh, ha thanh
lang van » dang van, tang van, hoang van
danh va » doanh va, hanh va, anh va
xa danh » va danh, dia danh, nam danh
su sach » so sach, vu sach
lang xa » lang ha, dang xay
cua tre » cua te, cuu tre, cua triet
sach o » sach lo, sac o, sach y
va cua » va chua, via cua, ca 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 o ((lang xa) OR (lang van)) hoi. hieu ((qua thanh) or (cua thanh)) tuc xa danh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach o ((lang xa) OR (lang van)) hoi. hieu ((qua thanh) OR (cua thanh)) tuc xa danh va cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach o ((lang xa) OR (lang van)) hoi. hieu ((qua thanh) or (cua thanh)) tuc xa danh va cua tre*".