Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
hanh hai » thanh hai, nhanh hai, hang hai
ban hanh » ban hang
than duc » tran duc, phan duc, than doc
va than » va thanh, van than, va phan
duc ban » duc tan, duc van, dua ban
su sach » so sach, vu sach
y nang » ky nang, ly nang, v nang
o hoi » co hoi, o hoc, o hai

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 y nang ((xa hoi) or (o hoi)). lieu va than duc ban hanh hai ((cua triet) OR (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang ((xa hoi) OR (o hoi)). lieu va than duc ban hanh hai ((cua triet) OR (su triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang ((xa hoi) or (o hoi)). lieu va than duc ban hanh hai ((cua triet) OR (su triet))*".