Perhaps you should try some spelling variations:
nham thuoc » nha thuoc, nam thuoc, nham thuc
thuoc dang » thuoc dung, thuoc khang, thuc dan
cua triet » su triet, va triet
dang tinh » dang dinh, dang sinh, dang vinh
cua viet » ca viet, hoa viet, cua vat
tinh vi » trinh vi, tinh voi, tinh va
va nham » va cham, va tham, va nha
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sac ky) or (sach y)) lang xa hoi. hieu va nham thuoc dang tinh vi ((cua triet) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sac ky) OR (sach y)) lang xa hoi. hieu va nham thuoc dang tinh vi ((cua triet) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: te ((sac ky) or (sach y)) lang xa hoi. hieu va nham thuoc dang tinh vi ((cua triet) or (cua viet))*.