Perhaps you should try some spelling variations:
doanh khoa » toan khoa
dung thanh » duong thanh, dong thanh, dang thanh
thanh phan » thanh pho, thanh san, thanh toan
soc doanh » so doanh, hoa doanh, voi doanh
thai dung » thai duong, thai vung, thi dung
sach hoc » sach hoi, mach hoc, sach duoc
cach hoc » cach thuc, cach thoi, dich hoc
cuu long » cuu cong, cuu tong, cuu nang
long soc » lon soc, luong suc, cong so
khoa hoc » hoa hoc
xa thai » ca thai, a thai, da thai
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((sach hoc) or (cach hoc)) tap, nghien cuu long soc doanh khoa hoc xa thai dung thanh phan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach hoc) OR (cach hoc)) tap, nghien cuu long soc doanh khoa hoc xa thai dung thanh phan.
• Adding a wildcard symbol may retrieve word variants: thu ((sach hoc) or (cach hoc)) tap, nghien cuu long soc doanh khoa hoc xa thai dung thanh phan*.