Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
phan tuong » phan thuong, phan truong, phan xuong
tuong hoc » truong hoc, tuong ho, duong hoc
cach thuc » anh thuc, cac thu
van tuan » van quan, van ban, anh tuan
xda thai » xa thai, xuan thai, do thai
tuan dat » tan dat, tuat dat, thanh dat
thuc tap » tuc tap, thuc thai, thuc vat
hoc phan » hoc dan, hoc pho
da thai » dao thai, do thai, ca thai
tu cach » tu cac
cua co » cua bo, cua cong

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: tu cach thuc tap, nghien cua co hoc phan tuong hoc ((xda thai) OR (da thai)) van tuan dat~.
• Adding a wildcard symbol may retrieve word variants: tu cach thuc tap, nghien cua co hoc phan tuong hoc ((xda thai) or (da thai)) van tuan dat*.