Perhaps you should try some spelling variations:
thanh dong » thanh duong, thanh cong, hanh dong
ban thanh » ban hanh, ban hang
cau phuc » cau truc, chau phu, huu phuc
phuc ban » phuc van, thuc ban, thuoc ban
dong cua » dung cua, cong cua, huong cua
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
su sac » su cac, su xac
nang o » nang co, nang ho, nang ro
va cau » van cau, va cac, va dau
cua te » cua tu
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 sac) OR (su sach)) ky nang o hoi. hieu va cau phuc ban thanh dong cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) OR (su sach)) ky nang o hoi. hieu va cau phuc ban thanh dong cua te".
• Adding a wildcard symbol may retrieve word variants: ((su sac) OR (su sach)) ky nang o hoi. hieu va cau phuc ban thanh dong cua te*.