Perhaps you should try some spelling variations:
van doanh » toan doanh, van dong, van thanh
cham cuu » cap cuu, chat cua
van doan » van toan, van hoan, van dan
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
van cua » vang cua, ban cua, dan cua
y nang » ly nang, v nang, may nang
ma hoi » mai hoi, xa hoi, ma hoa
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: tu sach ((y nang) OR (ky nang)) ma hoi. hieu ve cham cuu ((van doan) or (van doanh)) van cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((y nang) OR (ky nang)) ma hoi. hieu ve cham cuu ((van doan) OR (van doanh)) van cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((y nang) OR (ky nang)) ma hoi. hieu ve cham cuu ((van doan) or (van doanh)) van cua te*".