Perhaps you should try some spelling variations:
thang thuoc » dang thuoc, thanh phuoc, trang thuc
khang thuoc » khong thuoc, dang thuoc, hanh thuoc
hoc nhanh » hoc nganh, hoc phan
cach hoc » cach thuc, cach thoi, dich hoc
nhan van » nhan dan, nhan va, phan van
tu cach » tu cac
cuu hoa » cuu khoa, cuu hoan, cau hoa
moi hoi » moi thoi, moi doi, moi voi
hoi ca » hoi cua, hoi cac, hoi cau

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 hoa hoc nhanh ((thang thuoc) OR (khang thuoc)) moi hoi ca nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cach hoc tap, nghien cuu hoa hoc nhanh ((thang thuoc) OR (khang thuoc)) moi hoi ca nhan van".
• Adding a wildcard symbol may retrieve word variants: tu cach hoc tap, nghien cuu hoa hoc nhanh ((thang thuoc) OR (khang thuoc)) moi hoi ca nhan van*.