Perhaps you should try some spelling variations:
nhanh chong » thanh cong, khanh phong
thanh toan » thanh hoa, thanh san, tinh toan
luc nhanh » luc nhan, luc nganh, luc canh
chong hoc » chung hoc, chong doc, thong hoc
hoi thanh » hoc thanh, hai thanh, hoa thanh
sach hoc » cach hoc, sach hoi, sach duoc
mach hoc » cach hoc, dich hoc, anh hoc
cuu long » cuu cong, cuu tong, cuu nang
long luc » dong luc, long cuc, long lich
toan ban » van ban
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach hoc) OR (mach hoc)) tap, nghien cuu long luc nhanh chong hoc xa hoi thanh toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach hoc) OR (mach hoc)) tap, nghien cuu long luc nhanh chong hoc xa hoi thanh toan ban".
• Adding a wildcard symbol may retrieve word variants: tu ((sach hoc) OR (mach hoc)) tap, nghien cuu long luc nhanh chong hoc xa hoi thanh toan ban*.