Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
nganh khoa » nganh hoa, nganh khong, doanh khoa
thu cach » thuc cach, thu canh, tu cach
cach hoc » cach thuc, cach thoi, dich hoc
cong hoc » dong hoc, cong coc, cong ho
cong hoa » dong hoa, dong hoc, hang hoa
khoa hoc » hoa hoc
nhan van » nhan dan, nhan va, phan van
va nhan » van nhan, ca nhan, va phan
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu cach hoc tap, nghien thu ((cong hoc) OR (cong hoa)) nganh khoa hoc ma hoi va nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu cach hoc tap, nghien thu ((cong hoc) OR (cong hoa)) nganh khoa hoc ma hoi va nhan van".
• Adding a wildcard symbol may retrieve word variants: thu cach hoc tap, nghien thu ((cong hoc) OR (cong hoa)) nganh khoa hoc ma hoi va nhan van*.