Perhaps you should try some spelling variations:
nganh long » nganh cong, nganh nong, nganh khong
long thuoc » luong thuoc, dong thuoc, khong thuoc
hoc nganh » hoc nhanh
cach hoc » cach thuc, cach thoi, dich hoc
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
thuoc ma » hoc ma, duoc ma
tu cach » tu cac
xa phan » a phan, x phan, xuat phan
va phan » van phan, va phat, va phap
hoa » khoa

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 cong hoc nganh long thuoc ma hoa ((xa phan) OR (va phan)) van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cach hoc tap, nghien cuu cong hoc nganh long thuoc ma hoa ((xa phan) OR (va phan)) van".
• Adding a wildcard symbol may retrieve word variants: tu cach hoc tap, nghien cuu cong hoc nganh long thuoc ma hoa ((xa phan) OR (va phan)) van*.