Perhaps you should try some spelling variations:
tren thuoc » trien thuoc, tren thuc, trung thuoc
hoach tren » hoach trong, hoach toan, hoc tren
thuoc sach » hoc sach, nuoc sach, thuat sach
hoach bai » hoach bang, hoc bai, sach bai
phan cong » thanh cong
sach khoa » bach khoa, sach nha, anh khoa
khoa chau » khoai chau, khoa phau, khoa cham
chau tong » khau tong, chau phong, chat trong
nha phan » nha phat, phap phan, nghe phan
bai hoc » dai hoc
hoc cac » hoc cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thu hoach bai hoc cac nha phan cong ) or ( thu hoach tren thuoc sach khoa chau tong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu hoach bai hoc cac nha phan cong ) OR ( thu hoach tren thuoc sach khoa chau tong )).
• Adding a wildcard symbol may retrieve word variants: (( thu hoach bai hoc cac nha phan cong ) or ( thu hoach tren thuoc sach khoa chau tong ))*.