Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
hoc nganh » hoc nhanh
nganh hoa » thanh hoa, khanh hoa, danh hoa
than tuan » thanh tuan, tran tuan, thanh xuan
thu kinh » thu minh, thuat kinh, nha kinh
kinh hoc » sinh hoc, hinh hoc, tinh hoc
cong hoc » dong hoc, cong hoa, cong coc
tan tuan » tran tuan, van tuan, tan tran
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 kinh hoc tap, nghien thu cong hoc nganh hoa hoc xa hai ((tan tuan) OR (than tuan)) san~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu kinh hoc tap, nghien thu cong hoc nganh hoa hoc xa hai ((tan tuan) OR (than tuan)) san".
• Adding a wildcard symbol may retrieve word variants: thu kinh hoc tap, nghien thu cong hoc nganh hoa hoc xa hai ((tan tuan) OR (than tuan)) san*.