Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghe thu
nganh khoa » nganh hoa, nganh khong, doanh khoa
co nganh » hoc nganh, cac nganh, moi nganh
khoa hoc » hoa hoc
tan tuan » tran tuan, than tuan, van tuan
tuan san » luan san, tan san, thanh san
thu tin » thuc tin, tu tin, thu hien
tin hoc » sinh hoc
cong co » dong co, cong cu, cong so
hai tan » hai van, hai quan
ma hai » ta hai, va hai, xa hai

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

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