Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
su triet » su viet, su tien, ve triet
thanh vi » hanh vi, thanh va, thanh ve
toc sach » hoc sach, doc sach, thuoc sach
xuc van » duc van, luc van, vuc van
lang ha » long ha
ky lang » ky nang, ky dang, ky tang
va cam » va cham, va cac, va cai
va cao » va cac, va co, va dao
vi su » va su, ve su, ki su

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (toc sach)) ky lang ha noi. lieu ((va cam) OR (va cao)) xuc van thanh vi su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ky lang ha noi. lieu ((va cam) OR (va cao)) xuc van thanh vi su triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (toc sach)) ky lang ha noi. lieu ((va cam) OR (va cao)) xuc van thanh vi su triet*".