Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
su triet » su viet, su tien, ve triet
toc sach » hoc sach, doc sach, thuoc sach
cham tuc » nham thuc, pham thuc, tham thuc
tuc gia » tac gia, duc gia, toc gia
va cham » va chat, va tham
hieu va » lieu va, hieu qua
su sach » so sach, vu sach
ma hoi » mai hoi, ma hoa, me hoi
lap su » lap du, lap tu, lai su

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) or (toc sach)) ky nang ((ma hoi) OR (xa hoi)). hieu va cham tuc gia thanh lap su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (toc sach)) ky nang ((ma hoi) OR (xa hoi)). hieu va cham tuc gia thanh lap su triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (toc sach)) ky nang ((ma hoi) OR (xa hoi)). hieu va cham tuc gia thanh lap su triet*".