Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
coc nganh » hoc nganh, cac nganh, chuc nganh
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 coc » cong cuoc, cong cac, cong co
khoa hoc » hoa hoc
tan tuan » tran tuan, than tuan, tan tran
van tuan » van quan, van ban, anh tuan
hoc xa » hoc ma
xa hai » xa thai, xua hai, xa hoi

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 coc nganh khoa hoc xa hai ((tan tuan) OR (van tuan)) san~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu tinh hoc tap, nghien cuu cong coc nganh khoa hoc xa hai ((tan tuan) OR (van tuan)) san".
• Adding a wildcard symbol may retrieve word variants: thu tinh hoc tap, nghien cuu cong coc nganh khoa hoc xa hai ((tan tuan) OR (van tuan)) san*.