Perhaps you should try some spelling variations:
nganh chung » nhanh chuong, nganh cong, nhanh chong
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
thanh toan » thanh hoa, thanh san, tinh toan
hoc nganh » hoc nhanh
chung hoc » trung hoc, dung hoc, hung hoa
ban thanh » ban hanh, ban hang
sach hoc » cach hoc, sach hoi, sach duoc
mach hoc » cach hoc, dich hoc, anh hoc
cong hoc » dong hoc, cong hoa, cong coc
hoc xa » hoc ma
do ban » doi ban, co ban, do ben
xa do » va do

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach hoc) OR (mach hoc)) tap, nghien thu cong hoc nganh chung hoc xa do ban thanh toan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach hoc) OR (mach hoc)) tap, nghien thu cong hoc nganh chung hoc xa do ban thanh toan".
• Adding a wildcard symbol may retrieve word variants: te ((sach hoc) OR (mach hoc)) tap, nghien thu cong hoc nganh chung hoc xa do ban thanh toan*.