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