Perhaps you should try some spelling variations:
chuong hoc » chung hoc, thuong hoc, truong hoc
cach thoi » cac thoi, cach thuc, cach noi
coc nhanh » hoc nhanh, doc nhanh, cach nhanh
thoi tap » toi tap, hoc tap, thoi dai
cuu cong » cua cong, thu cong, cac cong
doc hanh » hoc hanh, duc hanh, doi hanh
tu cach » tu cac
hoi van » hoi va, hoi dan, hai van
van han » van hanh, van phan, van nhan
ma hoi » mai hoi, xa hoi, ma hoa
han va » hang va, hanh va, nhan 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 thoi tap, nghien cuu cong ((coc nhanh) OR (doc hanh)) chuong hoc ma hoi van han va~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cach thoi tap, nghien cuu cong ((coc nhanh) OR (doc hanh)) chuong hoc ma hoi van han va".
• Adding a wildcard symbol may retrieve word variants: tu cach thoi tap, nghien cuu cong ((coc nhanh) OR (doc hanh)) chuong hoc ma hoi van han va*.