Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach thu » sach thue, sach thieu, sach tham
thu nang » thi nang, thu hang, thu bang
danh hai » dang hai, lanh hai, manh hai
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
hai cua » thai cua, dai cua, hoi cua
x hoi » x ho, 5 hoi
o hoi » co hoi, o hoc, o hai
va am » va lam, va cam

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 thu nang ((((x hoi) OR (xa hoi))) or (o hoi)). hieu va am thuc va danh hai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thu nang ((((x hoi) OR (xa hoi))) OR (o hoi)). hieu va am thuc va danh hai cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach thu nang ((((x hoi) OR (xa hoi))) or (o hoi)). hieu va am thuc va danh hai cua triet*".