Perhaps you should try some spelling variations:
nhanh cong » nhanh chong, nganh cong, nhanh dong
toc sach » hoc sach, doc sach, thuoc sach
sach hoc » cach hoc, sach hoi, mach hoc
thuoc va » thuc va, thuoc ma, thuong va
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
va phap » va phat, ban phap
phap va » phap vat, pham va, pham van
va hoi » xa hoi, va hoc, va hoa

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach hoc tap, nghien cuu mon hoc ((nhanh cong) OR (thanh cong)) thuoc va hoi va phap va~".
• Adding a wildcard symbol may retrieve word variants: toc sach hoc tap, nghien cuu mon hoc ((nhanh cong) OR (thanh cong)) thuoc va hoi va phap va*.