Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
luc nganh » luc ngan, chuc nganh, luat nganh
cach hoc » cach thuc, cach thoi, dich hoc
cuu dong » cuu cong, cuu tong, cuu long
dong luc » nang luc
thuoc ma » hoc ma, duoc ma
thuc dan » thuc hanh, hoc dan, thuc vat
phap vat » phap luat, phap phat, phap viet
tu cach » tu cac
hoi ban » hoi dan, hoi bai, doi ban

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 dong luc nganh khong ((thuoc ma) or (thuc dan)) hoi ban phap vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach hoc tap, nghien cuu dong luc nganh khong ((thuoc ma) OR (thuc dan)) hoi ban phap vat.
• Adding a wildcard symbol may retrieve word variants: tu cach hoc tap, nghien cuu dong luc nganh khong ((thuoc ma) or (thuc dan)) hoi ban phap vat*.