Perhaps you should try some spelling variations:
nganh tuong » manh tuong, nganh nong, nganh khong
nganh cong » nhanh chong, thanh cong
cach hoc » cach thuc, cach thoi, dich hoc
nhan dan » phan dau, gian dan, nhan tai
tu cach » tu cac
cuu hoa » cuu khoa, cuu hoan, cau hoa
xa nhan » ca nhan, va nhan, xa phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cach hoc tap, nghien cuu hoa hoc ((nganh tuong) or (nganh cong)) hoc ma hoa xa nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach hoc tap, nghien cuu hoa hoc ((nganh tuong) OR (nganh cong)) hoc ma hoa xa nhan dan.
• Adding a wildcard symbol may retrieve word variants: tu cach hoc tap, nghien cuu hoa hoc ((nganh tuong) or (nganh cong)) hoc ma hoa xa nhan dan*.