Perhaps you should try some spelling variations:
nganh hoa » thanh hoa, khanh hoa, danh hoa
thu tinh » thue tinh, thuy tinh, thuc tinh
tinh hoc » sinh hoc, tin hoc, hinh hoc
dong hoc » dong co, dong luc
mon hoc » toan hoc
hai van » thai van, ha van, hai tan
ban san » ban soan, ban dan, ban can
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 ((mon hoc) or (dong hoc)) nganh hoa hoc xa hai van ban san~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu tinh hoc tap, nghien cuu ((mon hoc) OR (dong hoc)) nganh hoa hoc xa hai van ban san.
• Adding a wildcard symbol may retrieve word variants: thu tinh hoc tap, nghien cuu ((mon hoc) or (dong hoc)) nganh hoa hoc xa hai van ban san*.