Perhaps you should try some spelling variations:
ve triet » va trien, su triet
dang mai » dang hai, dang mau, dang bai
mai khoi » mai khoa, tai khoa, cac khoi
hieu van » hieu va, thien van, lieu va
lam duc » lam duoc, pham duc, nam duoc
van anh » van thanh, van minh
hoc sac » hoc sach, hoc cac, hoc mac
van lam » van nam
ky dang » ky nang, ky danh
sac ky » cac ky, sai ky
cua te » cua tu
tuan » quan, tran, luan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sac ky dang mai khoi. hieu van lam duc ((van anh) OR (tuan anh)) vi ((cua te) OR (ve triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sac ky dang mai khoi. hieu van lam duc ((van anh) OR (tuan anh)) vi ((cua te) or (ve triet))~".
• Adding a wildcard symbol may retrieve word variants: hoc sac ky dang mai khoi. hieu van lam duc ((van anh) OR (tuan anh)) vi ((cua te) or (ve triet))*.