Perhaps you should try some spelling variations:
thuoc bach » thuoc sach, thuoc ban, truc bach
bach khoan » cac khoan, bach hoa, bach khang
hoach tren » hoach trong, hoach toan, hoc tren
hoach tin » hoach toan, hoach dinh, hoa tin
tin thuoc » tin thuong, tin hoc, ban thuoc
khoan mot » khoan hoi, chon mot, han mot
mot tuong » doi tuong, dot trong, mot cong
tren thuc » trien thuc, tron thuc, trinh thuc
thuc bach » truc bach, thuc cach, thuoc sach
bach khoa » anh khoa
pho thong » he thong
khoa pho » khoa phu, khoa khoa, khoa phau

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 tin thuoc bach khoan mot tuong ) or ( thu hoach tren thuc bach khoa pho thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu hoach tin thuoc bach khoan mot tuong ) OR ( thu hoach tren thuc bach khoa pho thong )).
• Adding a wildcard symbol may retrieve word variants: (( thu hoach tin thuoc bach khoan mot tuong ) or ( thu hoach tren thuc bach khoa pho thong ))*.