Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dan hanh » dang hanh, dan khanh, dan thanh
thuc dan » thuc hanh, hoc dan, thuc vat
sach ty » sach y, sach tu, sach thu
su sach » so sach, vu sach
va cam » va cham, va cac, va cao
vi cua » vai cua, di cua
ve cam » ve cham, ve cac, ve cai
x hoi » o hoi, x ho, 5 hoi

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 ty xang ((x hoi) OR (xa hoi)). hieu ((ve cam) or (va cam)) thuc dan hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty xang ((x hoi) OR (xa hoi)). hieu ((ve cam) OR (va cam)) thuc dan hanh vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty xang ((x hoi) OR (xa hoi)). hieu ((ve cam) or (va cam)) thuc dan hanh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ty xang ((x hoi) OR (xa hoi)). hieu ((ve cam) or (va cam)) thuc dan hanh vi cua triet*.