Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh tri » thanh tri, hanh tai, hanh trinh
sach thu » sach thue, sach thieu, sach tham
lang xa » lang ha, dang xay, lang van
xang xa » mang xa, ang xa, dang xay
van bac » van ban, van hac, dan bac
van bao » van ban, van dao
va hanh » van hanh, va thanh, va danh
bo sach » co sach, hoc sach
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: bo sach thu ((xang xa) or (lang xa)) hoi. hieu ((van bac) OR (van bao)) luc va hanh tri cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach thu ((xang xa) OR (lang xa)) hoi. hieu ((van bac) OR (van bao)) luc va hanh tri cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "bo sach thu ((xang xa) or (lang xa)) hoi. hieu ((van bac) OR (van bao)) luc va hanh tri cua triet*".