Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
nganh cong » nhanh chong, thanh cong
hoc nganh » hoc nhanh
cach hoc » cach thuc, cach thoi, dich hoc
cong hoc » dong hoc, cong hoa, cong coc
tu cach » tu cac
hoi cua » hoi chuc
nhan va » nhan tai, nhan dan, nhan tao
hoi ca » hoi cac, hoi cau, hoi va

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 thu cong hoc nganh cong hoc ma ((hoi ca) OR (hoi cua)) nhan va~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cach hoc tap, nghien thu cong hoc nganh cong hoc ma ((hoi ca) OR (hoi cua)) nhan va".
• Adding a wildcard symbol may retrieve word variants: tu cach hoc tap, nghien thu cong hoc nganh cong hoc ma ((hoi ca) OR (hoi cua)) nhan va*.