Perhaps you should try some spelling variations:
nhanh khong » nhanh chong, nganh khong, nhan khong
khong thuoc » khang thuoc, hong phuoc, dong thuoc
hoc nhanh » hoc nganh, hoc phan
phap phat » phap luat
sach hoc » cach hoc, sach hoi, mach hoc
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
thuoc va » thuc va, thuoc ma, thuong va
phap vat » phap luat, phap viet, phap day
tu sach » thu sach, su sach, te sach
va hoi » xa hoi, va hoc, va 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 tap, nghien cuu dong hoc nhanh khong thuoc va hoi va ((phap vat) OR (phap phat))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoc tap, nghien cuu dong hoc nhanh khong thuoc va hoi va ((phap vat) OR (phap phat))".
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien cuu dong hoc nhanh khong thuoc va hoi va ((phap vat) OR (phap phat))*.