Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
cao suc » cao su
cao duc » dao duc, giao duc, tao duoc
tai cua » thai cua, tai cuc, tri cua
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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 ky nang x hoi. hieu van ((cao suc) OR (cao duc)) va thanh tai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang x hoi. hieu van ((cao suc) OR (cao duc)) va thanh tai cua te".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang x hoi. hieu van ((cao suc) OR (cao duc)) va thanh tai cua te*.