Perhaps you should try some spelling variations:
cau trieu » cac trieu, chua trieu, cau dieu
cau triet » su triet, cua triet, va triet
thanh vi » hanh vi, thanh va, thanh ve
tu sach » thu sach, su sach, te sach
sach va » sach xa, sach ha, sach dao
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
va lang » va nang, hoa lang
tuc va » thuc va, truc va, duc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach va lang xa hoi. hieu va cuoc ((tuc va) OR (tuc xa)) thanh vi ((cau triet) or (cau trieu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach va lang xa hoi. hieu va cuoc ((tuc va) OR (tuc xa)) thanh vi ((cau triet) OR (cau trieu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach va lang xa hoi. hieu va cuoc ((tuc va) OR (tuc xa)) thanh vi ((cau triet) or (cau trieu))".
• Adding a wildcard symbol may retrieve word variants: tu sach va lang xa hoi. hieu va cuoc ((tuc va) OR (tuc xa)) thanh vi ((cau triet) or (cau trieu))*.