Perhaps you should try some spelling variations:
doanh gia » doanh giao, doanh giai, danh gia
toc sach » hoc sach, doc sach, thuoc sach
hieu van » hieu va, thien van, lieu va
ta doanh » va doanh, te doanh, ty doanh
cac thoi » cac toi, cac hop, cac tro
ky dang » ky nang, ky danh
van cac » van hac, van cau, van bac
ky tang » ky nang, kho tang, ky trong
thoi ta » thoi va, thoi xa, thoi dai
ky lang » ky nang, tay lang
gia cua » gian cua, giau cua, gia cuc
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ((((ky lang) OR (ky tang))) or (ky dang)) xa hoi. hieu van cac thoi ta doanh gia cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ((((ky lang) OR (ky tang))) OR (ky dang)) xa hoi. hieu van cac thoi ta doanh gia cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ((((ky lang) OR (ky tang))) or (ky dang)) xa hoi. hieu van cac thoi ta doanh gia cua te*".