Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
tan thanh » tran thanh, tang thanh, toan thanh
thu tinh » thue tinh, thuy tinh, thuc tinh
tinh hoc » sinh hoc, tin hoc, hinh hoc
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
khoa hoc » hoa hoc
xua hai » qua hai, cua hai, xuan thai
xa hai » xa thai, xa hoi, xa dai

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu tinh hoc tap, nghien cuu cong hoc nganh khoa hoc ((xa hai) or (xua hai)) tan thanh san~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu tinh hoc tap, nghien cuu cong hoc nganh khoa hoc ((xa hai) OR (xua hai)) tan thanh san.
• Adding a wildcard symbol may retrieve word variants: thu tinh hoc tap, nghien cuu cong hoc nganh khoa hoc ((xa hai) or (xua hai)) tan thanh san*.