Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
cach thoi » cac thoi, cach thuc, cach noi
hoc nganh » hoc nhanh
trung hoc » trung quoc
thoi dap » hoi dap, thoi dai, thi dap
cong hoc » dong hoc, cong hoa, cong coc
nhan van » nhan dan, nhan va, phan van
tu cach » tu cac
va nhan » van nhan, ca nhan, va 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 thoi dap, nghien thu cong hoc nganh ((dung thuoc) or (trung hoc)) xa hoi va nhan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach thoi dap, nghien thu cong hoc nganh ((dung thuoc) OR (trung hoc)) xa hoi va nhan van.
• Adding a wildcard symbol may retrieve word variants: tu cach thoi dap, nghien thu cong hoc nganh ((dung thuoc) or (trung hoc)) xa hoi va nhan van*.