Perhaps you should try some spelling variations:
doanh khoa » toan khoa
vung thanh » vuong thanh, vung nhanh, dung thanh
thanh phan » thanh pho, thanh san, thanh toan
soc doanh » so doanh, hoa doanh, voi doanh
thai vung » thai cong, thai van
sach hoc » cach hoc, sach hoi, mach hoc
dich hoc » sinh hoc, hinh hoc, tinh 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 (dich hoc)) tap, nghien cuu long soc doanh khoa hoc xa thai vung thanh phan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach hoc) OR (dich hoc)) tap, nghien cuu long soc doanh khoa hoc xa thai vung thanh phan.
• Adding a wildcard symbol may retrieve word variants: thu ((sach hoc) or (dich hoc)) tap, nghien cuu long soc doanh khoa hoc xa thai vung thanh phan*.