Perhaps you should try some spelling variations:
nhanh thong » nhanh chong, nhanh thang, nhan thong
thanh nhan » thanh phan, thanh san, thanh toan
luc nhanh » luc nhan, luc nganh, luc canh
thong hoc » thuong hoc, tuong hoc, thong hoa
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 cong » cua cong, thu cong, cac cong
cong luc » dong luc, cong suc, cong duc
nhan dan » phan dau, gian dan, nhan tai
ma hoi » mai hoi, xa hoi, ma hoa

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 cong luc nhanh thong hoc ma hoi thanh nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach hoc) OR (mach hoc)) tap, nghien cuu cong luc nhanh thong hoc ma hoi thanh nhan dan".
• Adding a wildcard symbol may retrieve word variants: tu ((sach hoc) OR (mach hoc)) tap, nghien cuu cong luc nhanh thong hoc ma hoi thanh nhan dan*.