Perhaps you should try some spelling variations:
tham thuc » nham thuc, pham thuc, tam thuc
cau triet » cau trieu, su triet, cua triet
sach thi » sach thu, sach tai, sach thieu
thi hanh » thi thanh
tinh lai » tinh lao, tinh hai, minh lai
tu sach » thu sach, su sach, te sach
hanh xa » hanh va, hanh ma, hanh xu
hieu ve » hieu va, hieu van
ve tham » va tham, ve cham, vi tham
thuc va » thuc vat, thuc dan, thuc day
va tinh » may tinh
cua tre » cua te, cuu tre, cua triet

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thi hanh xa hoi. hieu ve tham thuc va tinh lai ((cua tre) OR (cau triet))~.
• Adding a wildcard symbol may retrieve word variants: tu sach thi hanh xa hoi. hieu ve tham thuc va tinh lai ((cua tre) or (cau triet))*.