Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thuc van » thuc vat, thuc dan, thuc va
hanh le » thanh le, hanh ve, hanh de
tuc van » truc van, tuc va, duc van
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
hoc hoi » hoc khoi, hoc hoa, hoc noi
sac ky » cac ky, sai ky
ho hoi » hoa hoi, hoi hoi, co hoi
le cua » ly cua
su sac » su sach, su cac, su xac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky nang ((ho hoi) or (hoc hoi)). hieu ve cham ((tuc van) OR (thuc van)) hanh le cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang ((ho hoi) OR (hoc hoi)). hieu ve cham ((tuc van) OR (thuc van)) hanh le cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang ((ho hoi) or (hoc hoi)). hieu ve cham ((tuc van) OR (thuc van)) hanh le cua triet*".